Answer:
Part A). $15
Part B). $13.5
Step-by-step explanation:
Part A).
Rita wants to buy a sweater that was originally priced at = $25
If sweater is on sale for 40% off, price of the sweater will be = $25 - 40% of the original price
= [tex]25-25\times{\frac{40}{100} }[/tex]
= 25 - 10
= $15
Therefore, Rita has to pay $15 before taxes.
Part B).
Rita has a coupon for an additional 10% off. Then the price of the sweater after applying coupon = $15 - 10% of 15
= [tex]15-15\times \frac{10}{100}[/tex]
= 15 - 1.5
= $13.5
By applying discount coupon further sale price of the sweater will be $13.5