Question

You decide to enroll in a plan that gives you a 10% discount if you make telephone calls between 7:00 p.m. and 6:00 a.m. The per minute charge is $0.10 and the sales tax is 6%. On the first month’s bill you used the phone for 130 minutes between 6:00 a.m. and 7:00 p.m. and then for 400 minutes between 7:00 p.m. and 6:00 a.m. How much was your total bill?
(1 point)
Responses

$56.18
$56.18

$53.00
$53.00

$51.94
$51.94

$49.00

Answer 1

First compute charges:
- Day: 130 min × $0.10 = $13.00
- Night: 400 min × ($0.10 × 0.90) = 400 × $0.09 = $36.00
Subtotal = $13.00 + $36.00 = $49.00
Sales tax 6% = 0.06 × $49.00 = $2.94
Total = $49.00 + $2.94 = $51.94

Answer: $51.94