There are 4 red balls, 6 white balls, and 3 blue balls in a bag. if one ball is drawn from the bag at random, what is the probability that it is not white?
a. 1/7
b. 5/6
c. 7/13
d. 1/13

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.