Answer:
$514 give or take. I could be wrong so you might want some confirmation on my answer before putting it on your test or what ever you need it for because i'm only in Middle School.
Step-by-step explanation:
Answer:
16
Step-by-step explanation:
Plug in 4 for x
f(4) = 5(4) - 4 = 16
The correct equation is 8.7 + b = 54.6
because it is given that measure of side a is 8.7cm, in all other equations the values of a is different.
from the first equation we can find the value of b, that is
b = 54.6 - 8.7 = 45.9
so, value of b is 45.9cm
It means try to figure out the question by using the things with the same variable. so if it says “x + 6 = 13 and x = 8 then you use the x = 8 to figure out x + 6 = 14