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.
15x, because 2 × 4x= 8x and -1×-7=7x...add 8x and 7x ull get the answer
The salary range at company B is greater than Company A is the only right answer
