Answer:
a. $500
b. $1,700
Explanation:
In the cash basis system of accounting, revenue is recognized once cash has been collected while under accrual basis, revenue is collected once it is earned irrespective of whether cash has been collected or not.
Expenses are recorded when cash is paid in the cash basis system while expenses are recorded once it is incurred under the accrual system of accounting.
Hence
Cash basis - revenue earned is $500 for the year
Accrual basis - revenue earned is $1700 ( the sum of the amount paid and owed by the customer).