Let us assume number of pounds of Golden Delicious apples = g pounds.
Number of pounds of Fuji apples = Total number of pounds of both tyoes of apples - Number of pounds of Golden Delicious apples.
We are given total number of pounds of apples 30 pounds
Therefore,
Number of pounds of Fuji apples = (30 - g) pounds.
Cost per pound of Fuji apples = $3.00 per pound.
Total cost of (30 - g) pounds of Fuji apples = 3 times (30 - g)
= 3(30-g).
x represetns total cost of (30-g) pounds of Fuji apples.
Therefore, 3(30-g) value could replace x in the table.
