Answer:
Under the cash basis of accounting, revenue are reported on the income statement only when cash is received. The expenses are only recorded when cash is paid out
Under the accrual basis of accounting, revenue are accounted for when it is earned that is revenue are recorded before any money changes hands.
The answer below is based on the Cash Basis & Accrual Basis rule/
Amount of Revenue (Expense) for May
Cash Basis Accrual Basis
May 1 $3,000 $0
May 5 $130 $130
Mat 9 $2,300 $2,300
May 14 $2,600 $0
May 23 $0 $1,900
May 31 $0 $1,000 ($3,000/3 months)
May 31 $0 $1,700
May 31 $0 $420