At Ralph’s fruit stand ½ pound of grapes cost 90 cents. You want to buy 5 pounds of grapes. How much will they cost?

85.5

Step-by-step explanation:

because you have to add 1/2 and 90cents =90.5 then you have to subtract 5 away and your answer is 85.5

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Step-by-step explanation:

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step-by-step explanation:

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56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6