23. Potting Soil Mix You are making 24 pounds of your own potting soil mix of sphagnum peat moss and coarse sand. You buy the peat moss in bags that weigh
approximately 2 pounds.
a. The last time you made potting soil, you used 9 bags of sphagnum peat moss
and 4 bags of coarse sand. Use this information to find the number of pounds
in a bag of coarse sand.
b. Write an equation in standard form that models the possible combinations of
bags of sphagnum peat moss and coarse sand you can use.
c. List three possible combinations of whole bags of sphagnum peat moss and
coarse sand you can use to make the potting soil.