In the scaled down drawing of a sport utility vehicle shown below, 1/4 of an inch represents 1/2 of a foot. What is the unit rate in inches per foot

Technicians have installed a center pivot, circular irrigator for a farm that covers 25 acres. a.) how long is the irrigation boom (in feet) from the center pivot to its farthest extent? b.) if the irrigation boom makes 4 full revolutions in a day, how many miles does the end of the boom travel in 5 days?