Johnson Electronics sells electrical and electroniccomponents through catalogs. Catalogs are printedonce every two years. Each printing run incurs a fixedcost of $$25,000,$ with a variable production cost of $$5$per catalog. Annual demand for catalogs is estimatedto be normally distributed with a mean of $16,000$ andstandard deviation of $4,000.$ Data indicates that, onaverage, each customer ordering a catalog generates aprofit of $$35$ from sales. Assuming that Johnson wantsonly one printing run in each two$-$year cycle, howmany catalogs should be printed in each run?