[Question]Elias uses a bar of soap every month. If each bar of soap costs $4, how much does he spend on bars of soap in two years?
[Answer]A year is 12 months, so Elias spends 4 * 12 = $48 per year on bars of soap. In two years, he spends 2 * 48 = $96 on bars of soap. The answer is 96.

[Question]Bran's tuition fee is $90. He does a part-time job that pays him $15 per month and he has a scholarship that takes care of 30% of his tuition fee. If he needs to pay his tuition fee within 3 months, how much does Bran still need to pay?
[Answer]Bran's scholarship pays $90 x 0.30 = $27 to his tuition fee. So, the total amount he still needs to pay is $90 - $27 = $63. And Bran will be able to earn $15 x 3 = $45 after working for 3 months. Therefore, the total amount he still needs to pay is $63 - $45 = $18. The answer is 18.

[Question]John commissions an artist to make him a 9 by 13 drawing. A black and white drawing that size would cost $160. He wants a color drawing so that is 50% more expensive. How much did he pay?
[Answer]The extra cost for coloring is 160 * .5 = $80. So the total cost was 160 + 80 = $240. The answer is 240.

[Question]There are 4 alligators living on a golf course in Florida. If the number of alligators doubles every six months, how many alligators will there be at the end of a year?
[Answer]
First figure out how many times the alligator population doubles in one year by dividing the number of months in a year by the number of months it takes the population to double: 12 months / 6 months = 2. The alligator population doubles twice. Now double the alligator population once: 4 alligators * 2 = 8 alligators. Now double it again: 8 alligators * 2 = 16 alligators. The answer is 16.