Answer:
56°
Step-by-step explanation:
The two marked angles are supplementary, so total 180°.
(2x +8) +(x -2) = 180
3x +6 = 180 . . . . . . . . . . collect terms
x + 2 = 60 . . . . . . . . . . . divide by 3
x = 58 . . . . . . . . . . . . . . subtract 2
∠DCB = x-2 = 58 -2
∠DCB = 56
You can make an equation with these numbers.
182 ÷ 2 = 91 ÷ 2 = 45.5
Hope this helps!
B) is my guess i am 50% sure it could be the answer
(-7)*(2/5 + (-3/7))
= -14/5 + 3
=1/5
