Wildhorse's Nursery provides and maintains live plants in office buildings. The company's 142 customers are charged $200 per month for this service, which includes weekly watering visits. The variable cost to service a customer's location is $44 per month. The company incurs $4,200 each month to maintain its equipment and service vans and $5,200 each month in salaries. Wildhorse pays a CPA firm $27 per customer for accounting services. What is the expected monthly operating income if 32 customers are added