Harris Company manufactures and sells a single product. A partially completed schedule of the company's total costs and cost per unit over the relevant range of $30\mathrm{.}000$ to $50,000$ units is show below.

$\backslash$table$[[,$Units Produced and Sold$],[,30,000,40,000,50,000],[$Total Costs:,,,$],[$Variable Cost,$$180,000,,],[$Fixed Cost,$$300,000,,],[$Total cost$,$$$480,000,,],[,,,],[$Cost per unit:,,,$],[$Variable cost$,,,],[$Fixed cost$,,,],[$Total cost per unit,,,$]]$

Complete the above schedule of the company's total costs and costs per unit.

A company leased a copy machine to use in the administrative office. According to the lease agreement, the company must pay $$12,000$ plus $10$ cents for each copy made using the machine.

Use the mixed cost formula to estimate total lease expense based on copies made during the month.

$10,000$ copies

$13,000$ copies

$19,000$ copies