Answer:
x=16 ,PQ = 9.5
Explanation:
9.
<QRS and <RQT = 180 because they are same-side interior angles (RS parallel to QT)
4x+4+5x+32=180
9x+36=180
9x=144
x=16
10. ST is the midpoint of the trapezoid. Midpoint formula: PQ+NR/2 = ST
name PQ as x.
x+5.5/2 = 7.5
x +5.5 = 15
x = 9.5