The unit cost, in dollars, to produce each box of cat food is $3 and the fixed monthly costs are $22244. The price-demand function, in dollars per box, is p(x) 2x + 469 Where x is the number of boxes of cat food. Find the cost function. C(r) Find the revenue function. R(x) Find the profit function. P(x)

A company that sells radios has yearly fixed costs of ​$650,000. It costs the company $50 to produce each radio. Each radio will sell for $75. The​ company's costs and revenue are modeled by the following​ functions, where x represents the number of radios produced and sold. ​ C(x)=650,000+50​x, ​R(x)=75x Find and interpret (R−C)(13,000)​, (R−C)(26,000)​, and (R−C)(39,000). (R−C)(13,000)= What is the meaning of (R−C)(13,000)​? A. If the company sells 325,000 radios in one​ year, its net profit is ​$13,000. B. If the company sells 325,000 radios in one​ year, its net loss is ​$13,000. C. If the company sells 13,000 radios in one​ year, its net loss is ​$325,000. D. If the company sells 13,000 radios in one​ year, its net profit is ​$325,000. (R−C)(26,000)= What is the meaning of (R−C)(26,000)​? A. The company cannot sell more than 26,000 radios in one year. B. The most the company can make in one year is ​$26,000. C. If the company sells 26,000 radios in one​ year, it neither makes nor…

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A monthly cell phone charge is $45. Each long-distance minute used costs $0.30. The total monthly charge for Sarah’s cell phone bill is $60. Her monthly cell phone cost is represented by the function f(x)=45+0.30xfx=45+0.30x where xx represents the number of long-distance minutes used. If Sarah’s cell phone bill is $60, how many long-distance minutes did she use?