Can someone please help and if you’re correct i’ll give brainliest

The second one if not I'll redo it

The first one, the triangle

Step-by-step explanation:

It has three sides, and if you were to replicate the object in 3D it would have 5 vertices.

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