Answer:
The total cost of the purchase = $41.54
Step-by-step explanation:
Let's find the price of 2 CDs because which has 20% discount coupon.
Cost of 2 CDs = $10.99 × 2 = $21.98
Which has 20% of discount.
Discount = 20% × $21.98 = 0.2 * $21.98 = $4.396 = $4.40 [Rounded off to nearest hundredths place]
Cost of 2 CDs with discount = $21.98 - $4.40 = $17.58
Other 2 CDs with price of $10.99 each.
So, the total price before tax = 2 discounted CDs + 2 without discount price CDs
= $17.58 + $2*10.99
= $17.58 +$21.98
= $39.56
Now let's find sales tax, which is 5%
Sales tax = 5% × $39.56 = 0.05*$39.56 = $1.978 = $1.98 {rounded off to nearest hundredths place]
So, the total cost of the purchase = $39.56 + 1.98 = $41.54
