Answer:
the selling price is 21 dollars
3 weeks
Step-by-step explanation:
6 quarts = 12 pints
12 divided by 3 = 4
1. subtract
2. add
3. add
3
We can use the formula [ y2-y1/x2-x1 ] to solve.
7-1/2-0
6/2
Best of Luck!
