Answer:
A
Step-by-step explanation:
The opposite angles of the quadrilateral are supplementary, thus
x + 10 + 70 = 180
x + 80 = 180 ( subtract 80 from both sides )
x = 100 → A
56232.
42=2[{45-3(14-21)}+4]
42=2[{45-3×-6}+4]
42=2[{45-18}+4]
42=2[{27}+4]
42=2[27+4]
42=2×31
42=62
