Simple Interest
Sales tax TOTALS
Definitions and Misc.
Sales, Coupons, Rebates
100

Define each of the variables in the interest formula: I = prt

Interest = Principal x rate (decimal) x time (years)

100

After calculating sales tax, you _______ the subtotal. (add it to or subtract it from)

add it to

100

A monetary incentive in which you pay full price but send in a reimbursement to receive money back at a later date.

A rebate

100

A car is 5500 and is on sale for 3% off plus a 100 rebate. How much is the car after the sale?

$5,235

200

Calculate the interest earned:

P = 400 

r = .03

t = 10

$120

200
$53.00 and 6% tax
$56.18
200

Food that is not pre-prepared in Texas.

Non-taxable

200

What is the sale price of a pair of shoes that originally cost $78 but are 15% off? Round to the nearest hundredth.

$66.30

300

Mary deposits $1500 into an account that earns 6% simple interest. How much money is in her account after 20 years?

$3300

300
$18.45 and 4.5% tax. What is the total price?
$19.28
300

The total cost of items before tax or discounts are applied.

Subtotal

300

Which deal is better: 20% off 150 or a $40 off coupon.

20% is a final price of $112.50 and $40 is a final price of $110, so the coupon is a better deal.

400

Calculate the principal:

I = 200

r = 5%

t = 32

$125

400
$22.65 and 7% tax What is the total price?
$24.24
400

On a receipt, the what letters determine whether an item has sales tax or not? Give both letters and identify.

T - Taxable

F - Tax-free

400

You go out to eat at Red Robin. You order a burger and fries. Your meal comes to $14.50. You had a phenomenal waiter, so you want to tip him 25%. How much is your total bill with the tip included?

$18.13

500

Calculate the total value of the account:

I = 600

r = 2.5%

t = 30

$1400

500

Charlene's lunch bill was $18 and she tipped 15%. David's was $16.50 and he tipped 22%. Who paid more and by how much?

Charlene paid 20.70 and David paid 20.13. Charlene paid more by 57 cents.

500

Find the total cost according to the receipt with a sales tax of 8%. Round to the nearest hundredth.

eggs.....  1.80      F

bread.....  .99       F

socks.... 6.89       T

$10.23

500
You and a friend go to eat at Old Chicago. You buy a Calzone, which costs $9.50. Your friend buys a pizza, which costs 11.75. Since it is your friends birthday, you offer to pay for their meal. You want to leave a 15% tip as well. How much is your total bill.

$24.44

M
e
n
u