A rectangular storage container with an open top is to have a volume of 28 cubic

Question

A rectangular storage container with an open top is to have a volume of 28 cubic meters. The length of its base is twice the width. Material for the base costs 11 dollars per square meter. Material for the sides costs 9 dollars per square meter. Find the cost of materials for the cheapest such container.
Total cost =  (Round to the nearest penny and include monetary units. For example, if your answer is 1.095, enter $1.10 including the dollar sign and second decimal place.)

Find the minimum distance from the parabola

x-y^2=0

to the point (0,3)

Minimum distance =

Explanation / Answer

1)

Length of the base, L, is twice the width, W.: L = 2W
Volume = 28

Area of the base, Ab is the length times the width
Ab = LW = (2W)W = 2W

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