Firstly, we are going to obtain the area of the circular patio.


If a paving stone cost $10.50 per square foot, then the total cost of the paving stones will cost:

Hence, the correct option is Option C
Jacob mistook the given diameter of 12feet to be the radius.
He used the formula of the circular patio to be:

He then multiplied this area by the cost of $10.50, which is equal to:
