please I NEED SOMEONE TO HELP MY ASSIGNMENT

Answer:
because LV is the median of this trapezoid
=> LV = (MA + HT)/2
<=> 8.5 = (3y - 2 + 2y + 4)/2
<=> 8,5.2 = 5y + 2
<=> 17 = 5y +2
<=> y = 3