Does somebody know which is the answer? Some people said it 5 others 4 and the others 3

Your answer is 5

Why???

Supplementary of DEA is DEF

And 5 no is opposite of DEF. So, DEF = 5

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people went from manufacturing one object at a time by hand to manufacturing many objects in factories

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