A music store marks up the instruments it sells by 30%. If the price tag on a trumpet says $84.50, how much did the store pay for it?(

When eating out, record the total cost of your meal (before tip) and the tip that you left. determine the percent of the cost of the meal that you left as a tip.

The radius of a sphere is 3 inches. which represents the volume of the sphere?

Rewrite 9 log, x2 in a form that does not use exponents. 9log, x = log, x