Camille uses a 20% off coupon when buying a sweater that costs $47.99. if she also pays 6% sales tax on the purchase, how much does she pay?

Percentage of discount that Camille can use by the discount coupon = 20%
Original price of the sweater = $47.99
Amount of sales tax that needs to be paid = 20%
Now firstly we have to get the discounted price and on that the sales tax has to be added to get the final amount paid by Camille.
Amount of discount received by Camille = (20/100) * 47.99
                                                                 =  47.99/5
                                                                 = 9.59
Then the amount of discount received by Camille is $9.59
Then the price of the sweater after discount = (47.99 - 9.59) dollars
                                                                       = 38.4 dollars
Now the sales tax has to be added on the discounted price of $38.4
Amount of sales tax paid = (6/100) * 38.4
                                         = 2.30 dollars
Then
The total amount paid by Camille = (38.4 + 2.30) dollars
                                                      = 40.70 dollars
So the total amount paid by Camille for the sweater is $40.70

i think there was a typo. you wrote pat brings 3 quarts of ice-cream to the party. each serving of ice-cream is 1 6 quart. how many total servings of ice-cream does pat bring to the party? i think the bold is supposed to be 1/6. so 1 quart of ice cream = 6 servings. 6 * 3 = 18.

the answer is 18.