Question

Owners of an inactive quarry in Australia have decided to resume production. They estimate that it will cost them $10,000 per month to maintain and insure their equipment and that monthly salaries will be $30,000. It costs $800 to mine a ton of rocks. Write a formula that expresses the total cost each month, c, as a function of r, the number of tons of rock mined per month.

Answer 1

Answer:

48000$is the answer for your question dear friend