F(x) = x+2
g(x) = 3x

workout the value of gf(5)

g(5) = 15 and f(5) = 7

Step-by-step explanation:

f(5) = x + 2

f(5) = 5 + 2

f(5) = 7

g(5) = 3x

g(5) = 3(5)

g(5) = 15

plz mark as brainliest if correct!!!

21

Step-by-step explanation:

because firstly u substitute 5 into x in the f equation

so it will be f(x)=5+2=7

the substitute 7 into the g equation

so g(x)= 3 x 7= 21

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.

12

step-by-step explanation:

12 + 5 = 17

12x2=24

24-7=17