A nursery sells potting soil for $$0\mathrm{.}52$ per pound, and the soil is available in $4-\mathrm{????}\mathrm{????},10-\mathrm{????}\mathrm{????},$ and $50-\mathrm{????}\mathrm{????}$ bags. Let $\mathrm{????}(\mathrm{????})$ be the price of a bag

$($a$)$ Find the value of $\mathrm{????}(10).$

$

Interpret the value of $\mathrm{????}(10).$