Find the domain and range of each relation (use interval notation). Then determine if each relation is one-to-one.

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.

The amount spent on food and drink by 20 customers is shown below what is the modal amount spent ?

Cody was 165cm tall on the first day of school this year, which was 10% taller than he was on the first day of school last year.