Here is a answer in the form of a question. A 4-column table with 4 rows. Column 1 is labeled Service with entries Restaurant, Florist, Cab Fare, Dog Groomer. Column 2 is labeled Cost with entries 40 dollars, 94 dollars, 32 dollars, 62 dollars. Column 3 is labeled Gratuity with entries 18 percent, 12 percent, 20 percent, 26 percent. Column 4 is labeled Tax with entries 8.5 percent, 12 percent, 0 percent, 5.75 percent.
To what percent should the taxes for each service be rounded in order to make reasonable estimates?

Restaurant Server:
✔ 10
%
Florist:
✔ 10
%
Cab Fare:
✔ 0
%
Dog Groomer:
✔ 5
%