A) A rectangular room is twice as long as it's breadth and it's perimete 48m. Find it's length and breadth. If length is doubled and breadth
halved then find it's new perimeter.
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Answer is in the file below

https://cutt.ly/wzdvC7R

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