an open box is to be made from a 20 cm long square piece of material ,by cutting equal squares of length x cm from the corners and turning up the sides. verify that the volume of the box is given by f(x)=4x^3-80x^2+400x.

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.

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step-by-step explanation:

i think the answer is b x = 1, y = 35/2