If n=4 and m=3 find 2n-3m

One integer is 5 more than another. their product is 104. find the integers

Pyotr tchaikovsky sporting goods operates on a 45% overhead based on the selling price, which results in an overhead of $65.34 on the newest version of an air hockey game set. if the air hockey game set costs pyotr tchaikovsky sports $49.32, find the selling price, the markup, and the net profit.

Ineed to know the answer to this algebra question.