The quotient of twice a number t and 12

At a sale this week, a desk is being sold for $213. this is a 29% discount from the original price. what is the original price?

Rob spent 25%, percent more time on his research project than he had planned. he spent an extra h hours on the project. which of the following expressions could represent the number of hours rob actually spent on the project? two answers

Which of the following is not a subset of {1,2,3}?