Ablueprint for a picnic table has a scale of 1: 20. the table in the blueprint is 3 in. long. what is the length of the actual picnic table? a.) 5 feet b.) 720 feet c.) 5 inches d.) 60 feet

The blue print has a scale of 1:20. So every 1 inch represents 20 inches of the actual size. so 3 inches represents 20*3 of the actual table = 60 inches
12 inches is 1 feet
so 60 inches =60/12 = 5 feet
The correct answer is 5 feet.