HELP ME PLEASE, I NEED IT NOW

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

Of four points are collinear, they are also coplanar

What are the steps to solving the inequality 3b + 8 ≥ 14?