Question

What is the cost of a $8.99 gourmet cheeseburger that has a tax rate of 9%?

Answer 1

`$9.80`

Explanation:

Tax of `9%` will be added to `$8.99`

Find the tax: `9/100 xx 8.99 =0.8091`

Cost = `$8.99+$0.81 = $9.80`

You can also add the percentages first.

`100%+9% = 109%`

Now finding `109% " of " $8.99` will give the final answer immediately:

`109/100 xx 8.99 = $9.7991 to $9.80`