Adam's father deposited $2000 in the bank. It receives 8% interest paid throughout the year, and he withdraws the interest as soon as it is deposited. How much will Adam’s father have, including his deposit and the interest received after 2 and a half years?

The annual interest is 2000 * 8/100 = $

<<2000*8/100=160>>160. Interest for two and a half years is 160 * 2.5 = $<<160*2.5=400>>400. So, Adam's father will have 2000 + 400 = $<<2000+400=2400>>2400 after 2 and a half years. #### 2400 Jenny makes and freezes pans of lasagna all week so she can sell them at the market on the weekend. It costs Jenny $10.00 in ingredients to make 1 pan of lasagna. If she makes and sells 20 pans over the weekend at $25.00 apiece, how much does she make after factoring in expenses? Each pan costs $10.00 to make so for 20 pans, it will cost 10*20 = $<<10*20=200.00>>200.00 She sells each of the 20 pans for $25.00 each so she will make 20*25 = $<<20*25=500.00>>500.00 She makes $500.00 and spent $200.00 on ingredients so she makes 500-200 = $<<500-200=300.00>>300.00 #### 300 Mark bought 2 pounds of tomatoes for $5 per pound and 5 pounds of apples, at $6 per pound. How much did he spend in total? Mark bought 2 pounds of tomatoes for $5/pound * 2 pounds = $<<2*5=10>>10. Mark bought 5 pounds of apples for $6/pound * 5 pounds = $<<6*5=30>>30. Now add those two quantities to find Mark's total spending: $30 + $10 = $<<30+10=40>>40. #### 40 Harrison Elementary School is overcrowded with 1590 students, so 40% of the students are going to move to a new school. There are 3 grade levels, and each grade level needs one 20-person advanced class and the rest of the students divided evenly into 6 additional classes. How many students will there be in each normal class at the new school? First find how many students go to the new school: 1590 students * .4 = <<1590*.4=636>>636 students Then divide that number by 3 to find how many students are at each grade level: 636 students / 3 grades = <<636/3=212>>212 students/grade Then subtract the 20 students in the gifted class: 212 students - 20 students = <<212-20=192>>192 students Then divide that number by 6 to find the number of students in each other class: 192 students / 6 classes = <<192/6=32>>32 students/class #### 32 Due to the restrictions of Coronavirus, Mr. Trent, the local store owner, increased the prices of goods at his store by 15% each to make the same income he was making before. If buying an orange was $40 and the price of purchasing a mango was $50, calculate how much it costs in total now to buy ten oranges and ten mangoes at the new prices. If the initial price of orange was $40, after the increase, the price rose by 15/100*$40 = $<<40*15/100=6>>6 The total price of buying an orange at the new price is $6+$40 = $<<6+40=46>>46 For the mango, the price increased by 15/100*$50 = <<15/100*50=7.5>>7.5 The price of purchasing a mango at the new price is $50+$7.5 = <<50+7.5=57.5>>57.5 To buy ten oranges it would cost $46*10 = $<<46*10=460>>460 To buy 10 mangoes, it now costs $57.5*10 = $<<57.5*10=575>>575 The total cost of buying ten oranges and ten mangoes is $575+$460 = $<<1035=1035>>1035 #### 1035 Tomorrow, Pete must finish paying off the last $90 he owes on a bike. He goes through his wallet and finds two $20 bills. Checking his pockets, he finds four $10 bills. Unhappy that he doesn't have the entire amount, he suddenly remembers that he has plastic bottles that can be returned to his local store for cash. If the store pays 50 cents for each bottle, how many bottles will Pete have to return to the store? Pete’s wallet contains 2 * 20 = <<2*20=40>>40 dollars The money in Pete’s pockets is 4 * 10 = <<4*10=40>>40 dollars In total Pete has 40 + 40 = <<40+40=80>>80 dollars He owes 90 dollars on the bike and therefore needs 90 - 80 = <<90-80=10>>10 more dollars Since 50 cents is ½ dollar, then the number of bottles required to get 10 dollars is 10 / (1/2) = 10*2 = <<10/(1/2)=20>>20 bottles. #### 20 Hannah bought a new washing machine for $100 and a dryer that costs $30 less. Hannah got a 10% discount for buying two appliances. How much did Hannah pay for the two appliances after the discount? The dryer costs $100 - $30 = $<<100-30=70>>70. So the washing machine and dryer cost $100 + $70 = $<<100+70=170>>170. Hannah got $170 x 10/100 = $<<170*10/100=17>>17 discount. Thus, Hannah paid $170 - $17 = $<<170-17=153>>153. #### 153 John decides to replace all his hats. He has enough hats to wear a different one every day for 2 weeks. If each hat costs $50 how much do his hats cost? He has 2*7=<<2*7=14>>14 hats So they cost 14*50=$<<14*50=700>>700 #### 700 Blake needs to prime and paint 5 rooms in his house. Each room will require a gallon of primer and a gallon of paint. Currently the primer is $30.00 a gallon and they are offering 20% off. The paint costs $25.00 a gallon and is not on sale. How much will he spend on paint and primer? The primer is $30.00 with 20% off so that's 30*.20 = $<<30*.20=6.00>>6.00 off The primer is $30.00 and the discount is for $6.00 off so the sale price is 30-6 = $<<30-6=24.00>>24.00 per gallon Blake needs 5 gallons of primer that is $24.00 a gallon so that's 5*24 = $<<5*24=120.00>>120.00 He needs 5 gallons of paint that cost $25.00 a gallon so that's 5*25 = $<<5*25=125.00>>125.00 The primer is $120.00 and the paint is $125.00 so all total, he will spend 120+125 = $<<120+125=245.00>>245.00 on paint and primer #### 245 Mary was working on a research paper and already had borrowed 5 books from the library. 3 books weren't helpful so she returned those and checked out 5 more books. 3 days later, she went back to the library and returned 2 of those books and checked out 7 more books. How many books does Mary currently have checked out of the library? Mary started with 5 books and returned 3 so she had 5-3 = <<5-3=2>>2 books She had 2 books and checked out 5 more books so she had 2+5 = <<2+5=7>>7 books She now has 7 books but returned 2 so she has 7-2 = <<7-2=5>>5 books She had 5 books and checked out 7 more books so she has 5+7 = <<5+7=12>>12 books checked out #### 12