thank you for the help

In one country, a monopolist takes over the production of Pfizer and J&J vaccines and begins selling vaccines to locals. To become fully immunized, some people prefer two shots of the Pfizer vaccine, while others prefer a single shot of the J&J vaccine. Nobody needs both vaccines for immunization. The demand for (2 dozes) of the Pfizer vaccine is Opf= 30-6p, and the demand for a single doze of the J&J vaccine is Ojj= 40-4p. Assume that the marginal cost of producing one dose of either vaccine is MC=1. The demand quantities Oof and Qii are expressed in millions of dozes, while the prices P and MC are expressed in the currency of the country. a) Suppose. the monopolist charges the same price per one shot of either vaccine. How many dozes of each vaccine will be provided? What profits will the monopolist earn? b) Suppose the monopolist charges prices Pof and Pij per one doze of the Pfizer and J&J vaccines, respectively. How many dozes of each vaccine will be provided? What profits will the monopolist earn