Larry's Auto Body Repair Shop had revenues that averaged $$48038\mathrm{.}16$ per week in April and $$63465\mathrm{.}98$ per week in May. Assume four weeks per month. During both months, the shop employed six full$-$time $(40$ hours$/$week$)$ workers. In April the firm also had four part$-$time workers working $25$ hours per week, but in May there were only $2$ part$-$time workers and they only worked $10$ hours per week.

Part a: $4$ points