Answer:
4
Step-by-step explanation:
the scaling factor is 1.5 to go from DEF to QRS.
so,
EF × 1.5 = RS = 6
EF = 6 / 1.5 = 6/1 / 3/2 = 6×2 / 1×3 = 12/3 = 4
7-2(180) = 900°
900 -158 -120 -139 -121 -125 -126
= 111°
Yes I can help you with the math problem what is it I take AP classes and CC ( college courses ) too