Olympia ate lunch at a restaurant. The amount of her check was $6.89. She left $8.00 on the table, which included the
amount she owed plus a tip for the waiter. Which equation shows t, the amount of her tip, in dollars?
O 6.89 +t=8.00
O 6.89-t-8.00
O 6.89t=8.00
O 6.89 8.00 - t