need help with part B

Wildhorse's Nurseryprovides and maintams live parits miofficuljuildings. The compqy 5 131 customersafechafged $145 permonth for this service, which includes weekfy watering yists. The vatiablecostionservicer a customer slocation is $33 per month. The company incurs $3,100 each month to maintanit sequipmentancsennce vancand $4,100 erchmonth insalaries. Wildhorse pays a CPA firm $16 per customer for accountimgservices. (a) Prepare Wildhorse's contribution formatincome statement for the month Textbookanc Media (b) What is the expected mont hly operating noome if 21 customersarsadded