Diana bought 4 liters of nail polish for $20. How much would it cost her if she bought 6 liters of nail polish?

20/4=5 $ for each liter then 6×5 = 30$ for 6 liters

i did it myself and i got 4.2 (b) hope its right

step-by-step explanation:

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.