D is wrong. It’s an exponential function so every year the number of stores it opens grows. Which means there can’t be one number for each year in terms of amount of new stores.
Answer:
The answer is

Step-by-step explanation:
Plug in and solve the equation. We are trying to find the y-intercept:

We found the y-intercept, so now we plug it in it's right full spot in the formula.

I just divided 9 by 20 and 1 by 4 then subtract 0.45-0.25 = 0.2
Answer:
A.
Step-by-step explanation:
< means open circles
x-21<3 x≥21
-x+21<3 x<21
18<x<21 and 21≤x24
so the union of will be 18<x<24
Answer:
With just the information given a perpendicular line has an opposite slope. For example the perpendicular line to x is -x. Hope this helps!