Question

20% tip on a 10.50 lunch

Answer 1

To find what the tip is, just multiply 0.20 (20% in decimal form) and 10.50, which will be $2.10.

If you want to know the total cost is including tip, just add 10.50 and 2.10 together, which will be $12.60

Answer 2

the answer is $12.60