If f(x)=2x-5
and
g(x) = 5x+7
find
F(g(x))

10x+9

Step-by-step explanation:

Here, f(x) = 2x-5 & g(x) = 5x + 7

Then, F(g(x)) = f(5x+7) = 2(5x+7)-5 = 10x + 14 -5

= 10x+ 9

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.

the answer is 54 sq. ft. i just did this question, on odyssey ware, and it was right. make brainliest.