15!!! is the answer to your question:)
Answer:
3rd option
Step-by-step explanation:
substitute x = f(x) into g(x)
g(f(x))
= g(x² + 2)
= 4(x² + 2) - 1
= 4x² + 8 - 1
= 4x² + 7
Answer:

or

Step-by-step explanation:
If Alexa worked 30 hours last week and earned $450, then her hourly payment is

Her payment has now been increased by 20%, so her hourly payment becomes

If she worked h hours, then she earned
If her new payment is p, then

or

It is already in identity.
cos (x - y) - cos (x + y) = 2 sin(x) sin (y)
Add 20ft+16ft=36ft+3.14=3.50 this is the correct answer