Final answer:
Hazel's concrete patio measuring 9 yards by 11 yards will cost $396.00 to build, calculated by multiplying the area of the patio (99 square yards) by the cost per square yard ($4.00).
Step-by-step explanation:
Hazel wants to build a concrete patio that will measure 9 yards by 11 yards. The cost for construction is $4.00 per square yard. To find the total cost, we need to multiply the area of the patio in square yards by the cost per square yard. First, calculate the area of the patio:
Area = Length × Width = 9 yards × 11 yards = 99 square yards.
Next, calculate the total cost:
Total Cost = Area × Cost per square yard = 99 square yards × $4.00/square yard = $396.00.
Therefore, the total cost of the patio will be $396.00.