I need help with this problem.

-4

Step-by-step explanation:

2t=-1-7

t=-8/2

t=-4

i am not sure also

for this pair of functions g(x)=x-2 and f(x)=|x| is (g o f)(a)= |a| -2

step-by-step explanation:

g(x)=x-2

f(x)=|x|

(g o f)(a)=?

(g o f)(x)=g(f(x))

(g o f)(x)=g(|x|)

(g o f)(x)=|x|-2

(g o f)(a)=|a|-2

answer: c

(2, -4)

goes 7 to the

(9, 4)

easy