Answer:
19
Step-by-step explanation:
the 2 angles shown are complementary meaning that they will add up to equal 90
x+71=90
subtract 71 from each side x=19
Answer:
-385
Step-by-step explanation:
If -5 = x, then f(x) = -15-365-5 which is -385.
M-N is 
Option B is correct.
Step-by-step explanation:
If
and
then find M-N
We need to subtract N from M
We will combine like terms (terms having same variable and exponent) and then solve them:


So, M-N is 
Option B is correct.
Keywords: Solving Polynomials
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About 260 because 202 plus 57 equals 259 and that'll round to 260