Answer:
$27.60
Step-by-step explanation:
Step 1: Find 5 over 8 of 24
doughnuts were glazed. So the total is 24. Now we just have to find 5 over 8 of the total.

Or

Cross divide 8 and 24

So we are left with

Remember, "1" doesn't change anything.
Simplify

Therefore, the cost of the glazed doughnuts WITHOUT TAX is $15.
Step 2: Add the tax to the cost of the glazed doughnuts.

To find the tax or sales tax, just multiply the sales tax (in decimal form, but it already is) to the total.

Now, add the result to the total.
(you don't have to add the zeros, but it still won't change anything)
<h3>The total cost of the glazed doughnuts is $27.60</h3>