Answer:
39.885 lb
Explanation:
To find the weight of 15.7 square feet of No. 16 gauge steel, you can simply multiply the area by the weight per square foot. Given that 1 square foot of this steel weighs 2.55 lb, you can calculate the weight as follows:
Weight = Area × Weight per square foot
Weight = 15.7 sq ft × 2.55 lb/sq ft
Weight = 39.885 lb
Rounding to the nearest thousandth, the weight of 15.7 square feet of No. 16 gauge steel is approximately 39.885 lb.