A salesperson in a recurring revenue firm is paid the equivalent of 2.5 months' sales revenue for each new customer added. The fee charged to the customer for the service is $120 per month, and providing the service costs the company $50 per month per customer. It costs $25 to initially hook up each new customer. What would be the effect on this month's expenses if the salesperson added fifty-five new customers this month?

(I tried to look for the answer on Chegg, but not sure if they are the correct answers and explanation).