Fact Pattern for Questions FP $8-$ FP$10$

Judy opened up her new salon, HairKutters. She hired a receptionist, Debbie, to work $6$ days per week, $8$ hours per day at a rate of $$10$ per hour. She also entered into an agreement with Dot, a hairdresser, whereby Dot would "rent" space from Judy in exchange for Judy providing her a chair to see clients. Per their agreement, Dot maintained her own client list and was free to work whatever hours she saw fit. Dot's clients paid Debbie at the register but, at the end of each week, Judy returned $70\%$ of those receipts to Dot $($Debbie kept the remainder as "rent."$)$

FP$10.$ Judy decides that she needs to hire a janitor and hires Martha, a $13$ year$-$old girl, to come in after school hours and spend no more than three hours per day cleaning. Can Judy do this?