Enzel goes online to buy a graphing calculator. He finds a site that currently has a promotion of 15% off on all orders over $50. Enzel decides to buy his graphing calculator, with a price tag of $83, at this site because he knows that he will get the 15% discount when he checks out. Enzel pays 4.5% sales tax on the discounted price and pays a shipping fee of $6.35. What is the total of Enzel’s online purchase?

Question

a.
$80.07
b.
$80.36
c.
$86.74
d.
$93.09

Answer 1

To calculate the total of Enzel’s online purchase, we will follow these steps:

1. Calculate the discount on the graphing calculator.

   • Original Price = $83
   • Discount = 15% of $83 = \( 0.15 \times 83 = 12.45 \)
   • Discounted Price = \( 83 - 12.45 = 70.55 \)

2. Calculate the sales tax on the discounted price.

   • Sales Tax Rate = 4.5%
   • Sales Tax = \( 0.045 \times 70.55 \approx 3.176 \)

3. Add the sales tax to the discounted price.

   • Price with Sales Tax = \( 70.55 + 3.176 \approx 73.726 \)

4. Add the shipping fee.

   • Shipping Fee = $6.35
   • Total Cost = \( 73.726 + 6.35 \approx 80.076 \)

Now, rounding the total to two decimal places gives us \( 80.08 \).

Thus, the answer we can infer is closest to $80.07.

So, the total of Enzel's online purchase is a. $80.07.