Final answer:
The total cost of laying the foundation for your house is $4,679.49.
Step-by-step explanation:
To calculate the total cost of laying the foundation for your house, we need to consider the cost of the rebars, the cost of the concrete, and the labor cost.
First, calculate the cost of the rebars. Since each rebar is 12 feet long and costs $6.85, the total cost of rebars is 37 x $6.85 = $253.45.
Next, calculate the cost of the concrete. We need to determine the volume of concrete required. Assuming the foundation has a width of 4 inches, a length of 12 feet (144 inches), and a height of 7 inches, the volume in cubic yards is (4/36) x (144/36) x (7/36) = 0.6083 cubic yards. Multiply this by the cost per cubic yard of $125 to find the cost of the concrete, which is 0.6083 x $125 = $76.04.
Finally, add the labor cost of $4,350 for the seven-inch foundation. The total cost of laying the foundation for your house is $253.45 + $76.04 + $4,350 = $4,679.49.