Step-by-step explanation: A scale factor is simply the ration between two corresponding units, therefore you can just divide the units by each other. There are 12 inches in a foot, 84 in 7 feet. 85/.5=168
Please let me know if you want me to add an explanation as to why this is the answer. I can definitely do that, I just wouldn’t want to write it if you don’t want me to :)
