Sophia thompson is 12 years old. her mother is 5 years less than four times as old as sophia. how old is mrs. thompson? explain.

Which is a graph of a proportional relationship?

After t seconds, a ball tossed in the air from the ground level reaches a height of h feet given by the equation h = 144t-16t^2. after how many seconds will the ball hit the ground before rebounding?

If the value of cos330°is√3/2 then find cos 165°.