John buys 3 dress shirts. They sell for $20 each. He also has to pay 10% tax on everything. How much did he pay in total?
Let's think: The shirts cost 3 * $20 = $60 before tax. The tax cost $60 * .1 = $6. So in total they paid $60 + $6 = $66.. The answer is: 66.

Jill makes scented candles as a hobby. Her favorite scents are lavender, coconut, and almond, and she uses the same amount of each scent for every candle. This time, she made twice as many lavender candles as coconut candles, along with a batch of almond candles. She ran out of almond scent after making ten candles. If she had one and a half times as much coconut scent as almond scent and used all her coconut scent up too, how many lavender candles did she make?
Let's think: Jill made one and a half times as many coconut candles as almond candles, so she made 10 * 1 1 / 2 = 15 coconut candles. She made twice as many lavender candles as coconut candles, so she made 2 * 15 = 30 lavender candles.. The answer is: 30.

Rebecca drinks half a bottle of soda a day. She bought three 6-packs of sodas the last time she was at the store. How many bottles of soda will she have left after four weeks?
Let's think: Rebecca bought 3 * 6 = 18 bottles of soda. A week is 7 days, so she will drink 4 * 7 = 28 half bottles of soda in four weeks. A bottle is two half bottles, so she will drink 28 / 2 = 14 bottles of soda in four weeks. Thus, after 4 weeks, she will have 18 - 14 = 4 bottles of soda left.. The answer is: 4.

Chris’s internet bill is $45 per month for 100 GB and $0.25 for every 1 GB over. His bill for this month is $65. How many GB over was Chris charged for on this bill?
Let's think:
Let G stand for the number of GB billed, so the total bill is $0.25G + $45 flat rate charge = $65 total bill. Now we will solve for G. $0.25G + $45 flat rate - $45 = $65 - $45. This simplifies to $0.25G = $20. $0.25G / $0.25 = $20 / $0.25. G = 80 GB were charged on this bill.. The answer is: 80.