Sarasota Company had cash receipts from customers in 2017 of $163,750. Cash payments for operating expenses were $79,420. Sarasota has determined that at January 1, accounts receivable was $11,900, and prepaid expenses were $18,820. At December 31, accounts receivable was $15,370, and prepaid expenses were $24,750. Compute (a) service revenue and (b) operating expenses.

(a) Service Revenue $

(b) Operating Expenses $