Question

A school wants to buy a chalkboard that measures 1 yard by 2 yards. The chalkboard costs $78.00 per square yard. How much will the chalkboard cost?

Answer 1

1. find the area of the chalkboard:

1 * 2 = 2 square yards

so the area of the chalkboard is 2 square yards

2. next we convert the yards to inches because the cost of the chalkboard is in square inches

since 1 yard is 36 inches then 2 yards is 72 inches

3. finally we multiply the cost and the area

72 * 78 = 5616

so the answer is $5616