A group of friends buys 15 movie tickets for a total of $147.66, which

includes a 7% sales tax.

Before tax, how much did a single movie ticket cost?

Answer: $9.20

Step-by-step explanation:

Divide the full tax price by the sales tax (7% or. 07) plus 1 (always add 1 to the tax) thus

$147.66 / 1.07 = $138.00

So $138.00 is the full price without tax.

Now divide $138.00 by the amount of tickets (15) to find a single ticket price before tax!

138.00/15 = $9.20

Remember to always add 1 to the tax percentage above when dividing to get the * pre-tax * price.