Direct materials$ $8\mathrm{.}10$Direct labor$ $5\mathrm{.}10$Variable manufacturing overhead$ $2\mathrm{.}60$Fixed manufacturing overhead$ $6\mathrm{.}10$Fixed selling expense$ $4\mathrm{.}60$Fixed administrative expense$ $3\mathrm{.}60$Sales commissions$ $2\mathrm{.}10$Variable administrative expense$ $1\mathrm{.}60$

Required:

If $21,000$ units are produced and sold, what is the variable cost per unit produced and sold?

If $25,000$ units are produced and sold, what is the variable cost per unit produced and sold?

If $21,000$ units are produced and sold, what is the total variable cost related to the units produced and sold?

If $25,000$ units are produced and sold, what is the total variable cost related to the units produced and sold?

If $21,000$ units are produced, what is the average fixed manufacturing cost per unit produced?

If $25,000$ units are produced, what is the average fixed manufacturing cost per unit produced?

If $21,000$ units are produced, what is the total fixed manufacturing overhead incurred to support this level of production?

If $25,000$ units are produced, what is the total fixed manufacturing overhead incurred to support this level of production?