Determine the answer to (-5)+4 and explain the steps using a number line

-20

Step-by-step explanation: -5 times a positive 4 makes it a negative and 5 times 4 is 20 so the answer is -20

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

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