Answer:
83°
Step-by-step explanation:
WZ is a straight line. Angles at a straight line add up to 180°.
180 - 97 =83°
57
=
Dilations
69 out of 100 would be 69/100 = 0.69 = 69% were answered correctly
100% - 69% = 100-69 = 31 = 31% = 31/100 were incorrect