What expression could be used to determine the product of -4 and 3 1/4

There a total of 82 students in the robotics club and the science club. the science club has 6 fewer students than the robotic club. how many students are in science club?

Subscriptions to a popular fashion magazine have gone down by a consistent percentage each year and can be modeled by the function y = 42,000(0.96)t. what does the value 42,000 represent in the function?

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?