Help me i dont understand this and i need the answer fast <3

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.

Pls brainliest will be awarded if answer is correct

Agallon of apple juice cost $7 a pack of eight 4.23oz box of apple juice $2.39 which is a better deal