This is substitution, it's very simple once you get the hang of it!
okay, what you want to do is plug in the numbers you already have, to get the number you don't have(r).
First, you plug in the numbers.
1. P= $2000
A=$2543
t= 4(years)
r=?
2543=2000^r(4)
Secondly, you want to solve the equation.
A' : -1, 3
B': 1, 2
C': 1, 5
Answer:
Gold, Orange, White, Blue
Step-by-step explanation:
It would be B. I had this same question.