Wanna talk?? 2021 almost over

Suppose i flip two identical coins. what is the probability that i get one head and one tail?

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.

If i have 20$ and i gave 5$ away how much i got