Abigail built 10 fences. Each fence took her 30 minutes to build. If she builds fences for the next 8 hours, how many fences would she have built in total?
8*60 = <T>multiply(8, 60)=480 minutes are in the next 8 hours.
Abigail builds 480/30 = <T>divide(480, 30)=16.0 fences.
Abigail will have built 10+16 = <T>add(10, 16)=26 fences in total.
