The weekly sales of Honolulu Red Oranges is given by $q=882-9p.$ Calculate the price elasticity of demand when the price is $$28$ per orange $($yes$,$ $$28$ per oranget$).$

Interpret your answer.

The demand is going $,$ by per $1\%$ increase in price at that price level.

Also, calculate the price that gives a maximum weekly revenue.

$

Find this maximum revenue.