Solve the system of equations x^2+y^2=16 and y=x^2-4

Find and simplify an expression for the area of five rows of x squares with side lengths of x centimeters .

Val and tony get paid per project. val is paid a project fee of $44 plus $12 per hour. tony is paid a project fee of $35 plus $15 per hour. write an expression to represent how much a company will pay to hire both to work the same number of hours on a project.

Kira looked through online census information to determine the overage number of people living in the homes in her city what is true about kira's data collection?