The balance sheets of Mark Company include the following:

Dec 31, 2021 Dec 31, 2020

Interest Receivable $6,300 $ -0-

Supplies 5,000 3,500

Wages Payable 3,600 3,800

Unearned Revenue -0- 4,000

The income statement for 2021 shows the following:

Interest Revenue $20,400

Service Revenue 41,700

Supplies Expense 8,700

Wages Expense 37,000

Instructions

Calculate the following for 2021:

a) Cash received for interest.

b) Cash paid for supplies.

c) Cash paid for wages.

d) Cash received for services.