Mike bought an mp3 player for $150. the sales tax rate was 8 percent . how much sales tax did he pay on the mp3 player?

Atorch and a battery cost 2.50 altogether. the torch costs 1.50 more than the battery. what fraction of the total price is the torch? give your answer in its simplest form.

Robin spent 25% more time on his research project than he had planned he’s been an extra h ours on the project which of the following expressions could represent the number of hours rob actually spent on the project

240 seventh graders and two-thirds of the students participate in after-school activities how many students participate in after-school activities