EXERCISE 7-3 Compute Activity Rates L07-3 Green Thumb Gardening is a small gardening service that uses activity-based costing to estimate costs for pricing and other purposes. The proprietor of the company believes that costs are driven primarily by the size of customer lawns, the size of customer garden beds, the distance to travel to customers, and the number of customers. In addition, the costs of maintaining garden beds depends on whether the beds are low maintenance beds (mainly ordinary trees and shrubs) or high maintenance beds (mainly flowers and exotic plants). Accordingly, the company uses the five activity cost pools listed below Activity COSt Pocl Activity Measure Caring for lawn Caring for garden beds-low maintenance Caring for garden beds high maintenance Travel to jobs Customer billing and service Square feet of lawn Scuare feet of low maintenance beds Square feet of high maintenance beds Number of customers The company has already completed its first stage allocations of costs and has summarized its annual costs and activity as follows Estimated Overhead Actvity Cost Pool Expected Activity $72,000150,000 square feet of lawn Caring for lawn Caring for garden beds-low $26,400 20,000 square feet of low maintenance beds maintenance Caring for garden beds-high maintenance ess: $41,400% a 15,000 quare feet of highmai tenance beds $3 250 12,500 miles ravel to loos Customer billing and service$8,750 25 customers Required: Compute the activity rate for each of the activity cost pools