To convert square feet to square inches, we need to understand the relationship between feet and inches. Specifically, since 1 foot is equal to 12 inches, the area in square feet can be converted to square inches by using the following conversion factor:
1 square foot = 12 inches * 12 inches = 144 square inches.
Given that we have 60 square feet, we multiply this by the conversion factor to find the number of square inches:
[tex]\[ 60 \text{ square feet} \times 144 \text{ square inches per square foot} = 8,640 \text{ square inches} \][/tex]
Thus, the correct answer is:
O 8,640 square inches
