The total weekly revenue earned at Royal Ruby Retailers is givenby
R(p) =−7/3p2 + 98p
where p is the price (in dollars) RRR charges per ruby.Use this function to determine the following.
(a) Determine the weekly revenue, to the nearest dollar, whenthe price is set at $20/ruby.
$
(b) Determine the weekly revenue, to the nearest dollar, when theprice is set at $200/ruby.
$
Interpret your result.
The range of the demand function cannot realistically includep = $200. The range of the demand function includesp = $200.    The domain of the demandfunction cannot realistically include p = $200. The domainof the demand function includes p = $200.
(c) Determine the price RRR should charge in order to obtain aweekly revenue of $1,029.
