What is the annual cost of the proposed system for 12,500 square feet at $2.25 per square foot?

To find the annual cost of the proposed system for 12,500 square feet at a rate of $2.25 per square foot, you would multiply the total square footage by the cost per square foot.

Here's how the calculation works:

1. Calculate the total annual cost by multiplying the area (in square feet) by the rate (cost per square foot).

2. So, the formula would be:

Total Cost = Area × Rate

Total Cost = 12,500 sq ft × $2.25/sq ft.

3. Performing the multiplication gives:

Total Cost = 12,500 × 2.25 = $28,125.

Therefore, the correct answer is $28,125, which correctly reflects the total annual cost for the proposed system. This calculation is essential because it helps estimate the financial commitment for maintaining the system based on the specified parameters. Understanding and accurately performing this type of calculation is crucial for budgeting and project management in architectural practice.