is there more to the question? because in order find "s" I need to know the question but a majority of the time you would multiply the amount of money the suit cost by the quantity.
Im a math intern.
So you have to find 15 percent of 900 which would be 135
9 = 2(6) - b
9 = 12 - b
-3 = b
Let S = Sum after 13 years
So = amount invested
t = time in years
i = annual interest rate = .0325
The S = So(1+i)t = $2,200(1.0325)13 = $3,334.21
You can fill up 4 tanks because 20 divided by 5 is 4
