earned $ 155,000 of service revenue during 2018. Of the $ 155,000 ​earned, the business received $ 135.000 in cash. The remaining​ amount, $ 20,000​, was still owed by customers as of December 31. In​ addition, Total Spa Services incurred $ 82,000 of expenses during the year. As of December 31​, $ 8,000 of the expenses still needed to be paid. In​ addition, Total Spa Services prepaid $ 7,000 cash in December 2018 for expenses incurred during the next year. 1. Determine the amount of service revenue and expenses for 2018 using a cash basis accounting system 2. Determine the amount of service revenue and expenses for 2018 using an accrual basis accounting system.