B. they are directly proportional because she keeps taking 3 at a time to his 1 at a time.
Your answer would be A because $4800 is your starting number and it increases 2% every year. How much is it in 20 years?
You use the formula ab^x
a is your starting number
b is the percentage
x is always the length of time
Since you are increasing and trying to get its worth larger than what it was before you use a number larger than one hundred percent in this case the number would be 1.02.
Y=4800(1.02)^20
Y=$7132.55
Multiply in Uu will get your answer good luck wish Uu the best
Answer:

Step-by-step explanation:

break it into pieces



put it all together
*since there's no negative in front of the other numbers except 7 they're positive so you add them*

simplify

2 x 5 x r will give you this as well as 10r