There are 4 red marbles, 3 blue marbles, and 13 green marbles in a bag. Two marbles are drawn one at a time, and put back.

What is the probability of drawing a blue marble and then drawing a red marble?

Write your answer as a fraction.

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.