exam Maths Puzzle Numerical Ability

The price of an item is given by p=2x^2 - 100. find the polynomial that represents the revenue generated from the sale of x items.

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exam Other Question

you are making flags for the school color guard. each flag has a red stripe and a 12-inch wide white stripe. the width of each flag is 3/4 its length. the lenght is 48 inches. how wide is the red stripe?

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A laser beam is transmitted with a "width" of 0.00200 degree. What is the diameter d of a spot of the beam on an object 258,000km distant?