Credit cards place a 3 digit security code on the back of cards what is the probability that a code starts with a number 7

How to write 3 tenths and 5 tenths as a decimal

Can someone me with this problem . show your work .

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.