Juniper Delivery Service had the following selected transactions during May:
1. Received cash from issuance of capital stock, $50,000.
2. Received cash for providing delivery services, $18,000
3. Paid advertising expense,$1,000.
4. Billed customers for delivery services, $35,000.
5. Purchased supplies for cash,$2,100.
6. Paid creditors, $2,000.
7. Paid rent for May, $2,000.
8. Received cash from customers on account, $16,700.
9. Determined that the cost of supplies on hand was $1,200; therefore, $900 of supplies had been used during the month.
10. Paid dividends, $1,500.
Indicate the effect of each transaction on the accounting equation by listing the numbers identifying the transactions, (1) through (10), in a vertical column, and inserting at the right of each number the appropriate letter from the following list:
a. Increase in an asset, decrease in another asset.
b. Increase in an asset, increasein a liability.
c. Increase in an asset, increase in stockholders' equity.
d. Decrease in an asset, decreasein a liability
e. Decrease in an asset, decrease in a stockholders' equity.