Jeffery has a collection of marbles. He gives his best friend 36 marbles from the collection for his birthday. This represents 30% of Jeffery's total collection. How many marbles did Jeffrey have in his collection?

i pretty sure it is

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