The least common multiple of two different prime numbers is their product when and why?!

never
always
sometimes

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

Which point is a solution to the inequality shown in this graph (-3,-3)(3,-1)

Find the balance at the end of 4 years if 1000 is deposited at the rate of