Find the value of the expression when p=2, q= -1/2 and r= -5

Find the slope of the line that contains the following points. r(-2, 4), s(6, -2)

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?

You need to solve a system of equations. you decide to use the elimination method. which of these is not allowed? 3x - 2y = 7 3x + 4y = 17 equation 1 equation 2