Finn had 132 boards. He gave 29 boards to his neighbor and stacked all of his remaining boards into piles around his house. Each pile
contained 20 boards. Which equation can be used to find p, the
number of piles of boards Finn made?

Total Boards : 132

Remaining : 29

Each Pile contained : 20

Equation :

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