A website charges $3 for each movie you
download. They also charge a one-time sign-up
fee of $14.99
What is the input variable?

so the input variable is the number of movies you download.

Step-by-step explanation:

y = 3x + 14.99

x is the number of movies you download

lets say you download 5 movies, its going to be y = 3(5) + 14.99

y = $29.99 only for the first time. after that 5 movies will be $15

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

1. sometimes

2. never true

3. sometimes

step-by-step explanation:

these are pretty self explanatory if you know what supp right and com angles are