A music store marks up the instruments it sells by 30%.
If the store bought a guitar for $45, what will be its store price?


If the price tag on a trumpet says $104, how much did the store pay for it?


If the store paid $75 for a clarinet and sold it for $100, did the store mark up the price by 30%? Show your thinking.


PLEASE HELP ME!!! WILL GIVE BRAINLIEST!