What is the value of the constant in the expression shown below 8y-6x^2y-7x+9

Rob spent 25%, percent more time on his research project than he had planned. he spent an extra h hours on the project. which of the following expressions could represent the number of hours rob actually spent on the project? two answers

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?

The candy store is having a 30% off sale. emma is going to buy $7.50 worth of candy. how much will she pay after the discount