Answer:
d and g
Step-by-step explanation:
Supplementary angles add up to 180 degrees, so we know that (6x+28)+(2x+8)=180. 8x+36=180, 8x=144. x=18. 6x+28=18(6)+28=136
2x+8=36+8=44
It is 1082.
I hope it helps, you can do more on a calculator. :)))
A.
PEMDAS
Parenthesis always comes first, then exponents, multiplication and division, adding and subtracting
So you do
distribute
a(b+c)=ab+ac
9(x+5)=9x+9 times 5=9x+45
7(x-3)=7x+7 times -3=7x-21
so now we have
9x+45+7x-21
group like terms
9x+7x+45-21
add
16x+24
simplified is 16x+24