You buy a shirt for $20. If the sales tax is 7%, what is the amount of tax (in dollars)? What is the cost of the shirt after tax?(1 point)

Question

Responses

Sales tax = $21.40; Cost of shirt after tax = $41.40
Sales tax = $21.40; Cost of shirt after tax = $41.40

Sales tax = $1.40; Cost of shirt after tax = $21.40
Sales tax = $1.40; Cost of shirt after tax = $21.40

Sales tax = $140; Cost of shirt after tax = $160
Sales tax = $140; Cost of shirt after tax = $160

Sales tax = $14; Cost of shirt after tax = $34
Sales tax = $14; Cost of shirt after tax = $34

A family's dinner bill subtotaled $38.82. If they left a 15% tip, how much was the cost of dinner? (Before tax)(1 point)
Responses

$38.82
$38.82

$5.82
$5.82

$33.00
$33.00

$44.64

A dress originally cost $50. It is now on sale for 20% off. What is the cost of the dress after discount? (before tax)(1 point)
Responses

$10.00
$10.00

$60.00
$60.00

$30.00
$30.00

$40.00

Answer 1

Let's break down each question one by one:

1. Calculating the sales tax and total cost of the shirt:

   • Shirt cost: $20
   • Sales tax rate: 7% (0.07)

   Sales tax = Shirt cost x Sales tax rate
   Sales tax = $20 x 0.07 = $1.40

   Cost after tax = Shirt cost + Sales tax
   Cost after tax = $20 + $1.40 = $21.40

   So, the correct response is:
   Sales tax = $1.40; Cost of shirt after tax = $21.40

2. Calculating the cost of dinner:

   • Dinner bill subtotal: $38.82
   • Tip rate: 15% (0.15)

   The question asks for the cost of dinner before the tax, but since the given amount is the subtotal, that is before any tip or additional tax. So, the answer is simply:
   $38.82

3. Calculating the cost of the dress after discount:

   • Original dress cost: $50
   • Discount rate: 20% (0.20)

   Discount amount = Original cost x Discount rate
   Discount amount = $50 x 0.20 = $10

   Cost after discount = Original cost - Discount amount
   Cost after discount = $50 - $10 = $40

   So, the correct response is:
   $40.00

To summarize:

1. Sales tax = $1.40; Cost of shirt after tax = $21.40
2. Cost of dinner (before tax) = $38.82
3. Cost of dress after discount = $40.00