Solve for x: the quantity of x plus 4 all over 2 = 7.

Aregression was run to determine if there is a relationship between hours of tv watched per day (x) and number of situps a person can do (y). the results of the regression were: y=ax+b a=-0.662 b=30.418 r2=0.703921 r=-0.839

What value of x is in the solution set of 4x - 12 s 16 + 8x? -10 -9 -8 -7

What is x3+3x2−16x−48 divided by x−1?