Chip has a $50.00 balance on his credit card. Since he didn't pay it off, he will be charged a 20% interest fee. He puts $20.00 on his credit card the following month and doesn't make any payments to his debt. He is hit with another 20% interest fee. What's the current balance on his credit card?

He has a balance of $50.00 and is charged 20% interest so that's 50*.20 = $

<<50*.20=10.00>>10.00 He had a balance of $50.00 and now has a $10.00 interest fee making his balance 50+10 = $<<50+10=60.00>>60.00 His balance is $60.00 and he puts another $20.00 on his card for a total of 60+20 = $<<60+20=80.00>>80.00 He didn't make a payment that month and is hit with another 20% interest fee so that's 80*.20 = $<<80*.20=16.00>>16.00 in interest His new balance is 80+16 = $<<80+16=96.00>>96.00 #### 96 Marian's pending credit card balance is $126.00. She puts $60.00 worth of groceries on her card and half that amount in gas. She returned some bath towels for $45.00. What's the new balance on her credit card? Her gas is half the price as her $60.00 groceries so that's 60/2 = $<<60/2=30.00>>30.00 in gas Her card has a balance of $126.00 and she added $60.00 in groceries and $30.00 in gas for a total of 126+60+30 = $<<126+60+30=216.00>>216.00 Her balance is $216.00 and she returns $45.00 worth of merchandise for a new balance of 216-45 = $<<216-45=171.00>>171.00 #### 171 The number of students in Kylie's class is 50. In a particular test, ten students scored 90 marks, 15 scored ten marks fewer than the first ten students, and the rest scored 60 marks each. What are the average marks for the whole class? The total marks for the first ten students are 90 * 10 = <<90*10=900>>900 marks The 15 students who scored ten marks fewer than the first ten had 90 - 10 = 80 marks each. The total marks for the following 15 students are 15 * 80 = <<15*80=1200>>1200 marks. The total number of students who scored above sixty is 10 + 15 = <<10+15=25>>25. If 50 students were present in the class, those who scored sixty are 50 - 25 = <<50-25=25>>25. If 25 students scored 60, then their total marks are 60 * 25 = <<60*25=1500>>1500 marks. The whole class scored a total of 1500 + 1200 + 900 = <<1500+1200+900=3600>>3600 marks. The average for the class is 3600 / 50 = <<3600/50=72>>72 marks. #### 72 The total number of years in a century is the same as the number of marbles Gideon has. If he gives 3/4 of the marbles to his sister and multiples the number of remaining marbles by 2, he gets his age five years from now. How old is Gideon now? A century has 100 years, and if Gideon has as many marbles as the number of years in a century, he has 100 marbles. If he gives 3/4 of the marbles to his sister, he gives out 3/4*100 = <<3/4*100=75>>75 marbles. Gideon's total number of marbles remaining after giving 3/4 of the marbles to his sister is 100-75=<<100-75=25>>25. When he multiplies the number of remaining marbles by 2, he gets his age five years from now, meaning he will be 25*2=<<25*2=50>>50 years old five years from now. Currently, Gideon is 50-5 = <<50-5=45>>45 years old. #### 45 Darry is a roofer and has to climb ladders multiple times a day. He climbs his full ladder, which has 11 steps, 10 times today. He also climbs his smaller ladder, which has 6 steps, 7 times today. He did not climb any steps otherwise. In total, how many times has Darry climbed a step today? Climbing the full ladder means Darry has climbed 11 steps * 10 times = <<11*10=110>>110 steps so far. On his smaller ladder, he has climbed 6 steps * 7 times = <<6*7=42>>42 steps. So he has climbed a step a total of 110 + 42 = <<110+42=152>>152 times today. #### 152 Two teams are playing in a stadium with a capacity of 2000 people. The total number of people in the stadium is 3/4 of the total capacity and each person paid $20 in entry fees. What is the difference between the total amount of fees collected when the stadium was 3/4 full and if the stadium would have been full? When the stadium is full, the total fees charged is 2000*$20 = $<<2000*20=40000>>40000. When the stadium is 3/4 full, the total number of people in is 3/4*2000 = <<3/4*2000=1500>>1500 people. The total entry fees collected when the stadium is 3/4 full is 1500*$20 = $<<1500*20=30000>>30000. The difference in the total entry fees when the stadium is full and when it's 3/4 full is $40000-$30000 = $<<40000-30000=10000>>10000. #### 10000 Ashton had two boxes of pencils with fourteen pencils in each box. He gave six pencils to his brother. How many pencils did Ashton have left? Ashton had 2 boxes * 14 pencils = <<2*14=28>>28 pencils. Ashton had 28 pencils - 6 = <<28-6=22>>22 pencils left. #### 22 Paula has 20 candies to be given out to her six friends. She needs to buy four additional candies so she can give an equal number of candies to her friends. How many candies will each of her friends get? Paula will have a total of 20 + 4 = <<20+4=24>>24 candies. Thus, each of her friends will receive 24/6 = <<24/6=4>>4 candies. #### 4 A soccer team has three goalies and ten defenders. The team also has twice as many midfielders as defenders, and the rest of the players are strikers. If the team has 40 players, how many strikers are in the team? The team's total number of goalies and defenders is 3+10 = <<3+10=13>>13. The number of midfielders in the team is twice the number of defenders, which means there are 2*10=<<2*10=20>>20 defenders in the team. The total number of players in the team playing the positions of goalies, defenders and midfielders is 20+13 = <<20+13=33>>33 If there are 40 players in the team, then the number of strikes in the team is 40-33 = <<40-33=7>>7 #### 7 Vanessa wants to buy a dress she saw at the mall, which costs $80, and she already has $20 in savings. Her parents give her $30 every week, but she also spends $10 each weekend at the arcades. How many weeks will she have to wait until she can gather enough money to buy the dress? Vanessa needs $80 – $20 = $<<80-20=60>>60 to buy the dress. She manages to gather $30 - $10 = $<<30-10=20>>20 each week The number of weeks she has to wait is 60 ÷ 20 = <<60/20=3>>3 weeks. #### 3