which equation is a function of x ? A. x=5 B. x=y squared +9 C. x squared=y D. x squared=y squared +16

Rose bought a new hat when she was on vacation. the following formula describes the percent sales tax rose paid b=t-c/c

Alex took his brother to a birthday party. the party was scheduled to last for 1 and 3/4 hours but they stayed for 4/5 of an hour more. how long did she stay at the party?

Erinn wrote the equation –5x + 4y = 32 to represent her hourly wage (y) and how this wage has changed during each year that she worked at a company (x). what is the rate of change in erinn's hourly wage per year?