Answer:
A
Step-by-step explanation:
So we have the two functions:

And we want to find:

This is the same as:

So, to find the answer, find g(1) first:

Now, substitute this value for g(1):

And plug this into f(x):

Therefore:

Our answer is A
280÷20=14 is that what ur asking?
<h2>B.</h2>
<h3>Perpindicular line are lines that intersect at a 90 degree angle.</h3><h3>Hope this helps!</h3>