The answer to this would b
It is rounded to the number 2,000,000.
supplementary angles sum up to 180°, so let's say we have two angles, a and b, a + b = 180, but we know that a is <u>twice the measure of her partner</u>, so a = 2b.

Answer:f(x) = x + 21
f(4) = 4 + 21
= 25
Step-by-step explanation: