Don is 24 years older than betty. in six years don will be twice as old as betty. how old is each now?

( try to answer using two variables)

10 point award

Determine whether the quadrilateral below is a parallelogram. justify/explain your answer (this means back it up! give specific information that supports your decision. writing just "yes" or "no" will result in no credit.)

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?

What is 0.368,0.380,0.365,and 0.383 in order from least to greatest