Question

you order a sandwich Wich is $7 and a soda Wich is $2 you'd like to give your waitress 18% gravity.
How much will she earn in a tip from you.?

SHOW WORK
Bot
18% of $9 (the total cost of the sandwich and soda) is $1.62. Therefore, the waitress will earn a tip of $1.62 from you.