Answer this question:John takes a pill every 6 hours. How many pills does he take a week?
He takes 24 / 6 = 4 pills a day. So he takes 4 * 7 = 28 pills a week.
The answer is 28.

Answer this question:Blake bought 4 lollipops and 6 packs of chocolate. If each lollipop costs $2 and a pack of chocolate costs the same as four lollipops, how much change will Blake get back if he gave the cashier 6 $10 bills?
Four pieces of lollipop cost $2x 4 = $8. A pack of chocolate costs $8 so 6 packs cost $8 x 6 = $48. The total amount that she needs to pay is $8 + $48 = $56. Blake gave the cashier $10 x 6 = $60. So, her change is $60 - $56 = $4.
The answer is 4.

Answer this question:Jay bought a book for $25, a pen for $4, and a ruler for $1. He paid with a fifty-dollar bill. How much change, in dollars, did Jay get?
Jay spent 25 + 4 + 1 = 30 dollars. He received 50 - 30 = 20 dollars in change.
The answer is 20.

Answer this question:A seminar is offered to a school for their teachers. The regular seminar fee is $150 but they offer a 5% discount if they register 2 days before the scheduled seminar. The school registered 10 teachers for the seminar a week before the schedule and it also released a $10 food allowance for each of the teachers. How much did the school spend in all?
The school got a $150 x 5 / 100 = $7.50 seminar fee discount for each teacher. Each teacher's seminar fee costs $150 - $7.50 = $142.50. So, ten teachers' seminar fees cost $142.50 x 10 = $1425. The food allowance for 10 teachers amounts to $10 x 10 = $100. Therefore, the school spent a total of $1425 + $100 = $1525.
The answer is 1525.