An 8ft length of 4 inch wide crown molding costs $14. how much will it cost to buy 32 ft of crown molding?

It will cost $56 to buy 32 ft of crown molding.

Explanation

Suppose, the cost of 32 ft of crown molding is   dollar.

Given that, 8 ft length crown molding costs $14.

According to the ratio of "length" of crown molding to the "cost", the equation will be.......

So, it will cost $56 to buy 32 ft of crown molding.

-2

7 - 9 = -2

reversed:

-2 + 9 = 7