The wholesale price of a special speaker was $64. It was then marked up 85% and sold online. What was the online price?

Let's online price was $x then according to the question

64 + 64 * (85/100) =x

                            x= 64 + 64 * 0.85

                            x= $118.4

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.