Sara got her first paycheck of two weeks of work. She had worked 40 hours a week at $11.50 per hour. The first thing she did was buy a new set of tires for her car for $410. How much money was she left with?

Sara worked 40 * 2 =

<<40*2=80>>80 hours over two weeks. She earned 11.50 * 80 = $<<11.50*80=920>>920 After buying new tires, she had $920 - 410 = $<<920-410=510>>510 left. #### 510 Kim takes 4 classes in school that last 2 hours each. She drops 1 class. How many hours of classes does she have now have per day? She is now in 4-1=<<4-1=3>>3 classes So she spends 3*2=<<3*2=6>>6 hours in school #### 6 Tom is binge-watching a show on Netflix. The show has 90 episodes, each one of which is 20 minutes long because there are no commercials. If Tom can spend two hours a day watching the show, how many days will it take him to finish watching the show? Each episode is 20 minutes long, and there are 90 episodes, so the series takes 20 minutes per episode * 90 episodes = <<20*90=1800>>1800 minutes to watch. 1800 minutes / 60 minutes per hour = <<1800/60=30>>30 hours to watch the series. Tom can watch 2 hours of TV a day, so it will take him 30 hours / 2 hours per day = <<30/2=15>>15 days to watch the entire series. #### 15 Thomas has 25 drawings to display. 14 of the drawings were made using colored pencils. 7 of the drawings were made using blending markers. The rest of the drawings were made with charcoal. How many are charcoal drawings? Thomas made 14 + 7 = <<14+7=21>>21 colored pencil and blending marker drawings. Thomas made 25 total drawings – 21 colored pencil and blending marker drawings = <<25-21=4>>4 charcoal drawings. #### 4 An author of a book got 6% of the total sales of the paper cover version of his books and 12% of the total sales of the hardcover version. If 32,000 copies of the paper cover version were sold at $0.20 each and 15,000 copies of the hardcover version were sold at $0.40 each, how much did the author earn? The total earnings for the paper cover version were $0.20 x 32 000 = $<<0.20*32000=6400>>6,400. So, the author earned $6,400 x 6/100 = $384 from the paper cover version. The total earnings for the hardcover version were $0.40 x 15,000 = $<<0.40*15000=6000>>6,000. So, the author earned $6,000 x 12/100 = $<<6000*12/100=720>>720 from the hardcover version. Therefore, the author earned a total of $384 + $720 = $<<384+720=1104>>1104. #### 1104 Mr. Ray has 100 customers waiting at his fish market. He has 10 tuna, each of which weighs 200 pounds. Each customer wants 25 pounds of tuna. Mr. Ray's store is first come, first served. How many customers will go home without any fish? He has 2,000 pounds of fish because 10 x 200 = <<10*200=2000>>2,000 He has enough for 80 customers because 2,000 / 25 = <<2000/25=80>>80 20 customers go home without any fish because 100 - 80 = <<100-80=20>>20 #### 20 Dakota and Ben order eggs for $3, pancakes for $2, and 2 mugs of cocoa for $2 each. The tax is $1. Later, Ben then decides to order 1 more batch of pancakes and 1 more mug of cocoa as he is still hungry. How much change should they get from $15? The cost of the food is $3 + $2 + $2 + $2 = $<<3+2+2+2=9>>9. The original total cost, including tax is $9 + $1 = $<<9+1=10>>10. Ben increases the total cost to $10 + $2 + $2 = $<<10+2+2=14>>14. They should get $15 - $14 = $<<15-14=1>>1 in change. #### 1 Mrs. Petersons bought 10 tumblers for $45 each. She paid with five $100 bills. How much change will Mrs. Petersons receive? The 10 tumblers amount to $45 x 10 = $<<45*10=450>>450. Mrs. Petersons paid $100 x 5 = $<<100*5=500>>500. So, her change will be $500 - $450 = $<<500-450=50>>50. #### 50 Janna sleeps 7 hours each day during weekdays and 8 hours each day during weekends. How many hours does she sleep in a week? She sleeps 7*5=<<7*5=35>>35 hours on weekdays. She sleeps 8*2=<<8*2=16>>16 hours on weekends. 35 + 16 = <<35+16=51>>51 hours is the amount of time she sleeps in a week. #### 51 There are 30 major league baseball stadiums. Zach has a goal to take his son to see at least one game at each one. He has calculated the average cost for them to travel and see a game will be $900 per stadium. Zach can save $1,500 per year for his baseball stadium trips. How many years will it take Zach to accomplish his goal? The total cost would be $900 x 30 stadiums = $<<900*30=27000>>27,000. Dividing the total cost by the amount Zach saves per year, we get $27,000 / $1,500/year = <<27000/1500=18>>18 years. #### 18