The demand function for a certain children bicycle is given by
Q = 10 \sqrt{(50-p)/p}
where Q is the quantity demanded per week and p with 0 < p < 50 is the price of a bicycle in dollars.

(a) Evaluate the demand elasticity

Here, "demand elasticity" is the absolute value of

(b) Should the price be raised slightly from 40 in order to increase revenue?

(c) When is the demand elasticity unitary?

(d) What is the maximum revenue?

Maximum Revenue =

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