Answer:
cost of 10 yards = $25
Explanation:
Hal can buy 6 yards of canvas at a total cost of $15
cost of 6 yards = $15
cost of 1 yard =

cost of 1 yard = $2.5
Now we find the cost of 10 yards
cost of 1 yard = $2.5
cost of 10 yards = 2.5 * 10 = 25
cost of 10 yards = $25