If c=40+20d c is cost d is days if it costs 240$,how many days would you be renting it for?

The problem is essentially asking us to find when . To do this, let's use 240 for and solve for .

You would be renting it for 10 days.

570, the answer is 570, hope it

8.75

how-to:

first, we need to find what we have to work with.

since i know that we have 7 (years) and 0.8 (inches), we can use these to solve and find the equation!

secondly, what you want to do, is see that we need to know how much growth out of the 0.8 inches he got in only 1 year, instead of 7 years.

let's try to divide.

7 ÷ 0.8 = 8.75