# ACT Math : How to find the amount of sales tax

## Example Questions

### Example Question #1 : Sales Tax

Beth purchased $21.25 worth of groceries. The sales tax rate is 7.5%. What was her total bill? Possible Answers:$22.84

$23.79$22.11

$23.41$21.93

$22.84 Explanation: The tax is calculated by 0.075 * 21.25 = 1.59375 or$1.59. So the total bill is the cost of items purchased plus tax, which is $21.25 +$1.59 = $22.84. ### Example Question #1 : How To Find The Amount Of Sales Tax Billy's bill at a restaurant is$50.00. If sales tax is 8%, how much tax does he pay?

$4.00$50.00

$58.00$8.00

$54.00 Correct answer:$4.00

Explanation:

You evaluate $50.00 x (0.08) =$4.00

### Example Question #3 : Sales Tax

The last week of August is tax-free week.  If the standard tax rate is 8.25%, how much money would a shopper save buying a $50 dress and a$30 pair of shoes during tax free week?

$4.13$6.60

$8.00$2.47

$7.25 Correct answer:$6.60

Explanation:

Tax = Total Cost * 0.0825 = (50 + 30) * 0.0825 = (80) x 0.0825 = 6.6 = $6.60 ### Example Question #85 : Percentage If a stick of deodorant costs$4.29 with a sales tax of 8.75%. What will the total cost of the item be?

(round to the nearest cent)

$4.66$4.76

$6.47$4.37

$4.67 Correct answer:$4.67

Explanation:

To solve for the tax charged multiply 0.0875 by the sales price of $4.29. This is$0.375375. Add this to the original amount of $4.29. The answer is 4.665375. Rounded to the nearest cent is$4.67

### Example Question #1 : Sales Tax

On a grocery shopping trip you spent $15 on meat,$5 on cheese, and $25 on produce. If the total bill was$48.15, what is the rate of sales tax on the food?

7%

7.5%

6.5%

0.7%

0.75%

7%

Explanation:

### Example Question #1 : How To Find The Amount Of Sales Tax

Jim buys a pair of shoes for , including tax. If the shoes were priced at , what percentage tax rate was he charged?

%

%

Explanation:

Step 1: Find the amount of tax tax paid

Jim paid  including tax for shoes that were  pre-tax. Therefore:

Jim paid  in tax.

Step 2: Figure out the tax rate (What percentage of  is ?)

Set up a proportion and solve for :

Therefore, Jim paid an  tax on the shoes he purchased.

### Example Question #4 : How To Find The Amount Of Sales Tax

A new boat cost . If the sales tax rate is , what was the original price of this boat before sales tax?

Explanation:

The easiest way to do this is to write out the equation as though you were solving from the original price to find the final price. You would know that:

or

Solving for , you get:

### Example Question #5 : How To Find The Amount Of Sales Tax

If a given locality charges  sales tax, what is the total price for purchasing an item that costs   before tax? Round to the nearest cent.

Explanation:

If a given locality charges  sales tax, what is the total price for purchasing an item that costs   before tax?

First, convert  to .  Then, multiply this by  to get  dollars.  Add this to the original price to get . This rounds to .

Another way to do this is to multiply  to get the same amount.

### Example Question #2 : How To Find The Amount Of Sales Tax

Sarah is buying a shirt that she likes. The shirt costs  but there is an  sales tax. How much does Sarah pay for the shirt in total, after sales tax is added? (Round to the nearest cent.)