
Answer:
57.75
Step-by-step explanation:
Doug did clean 1 3/4 hour.
Doug did paperwork for 2 1/3 hour
Doug did serving for 1 5/12
Add 1 3/4+ 2 1/3+1 5/12=16/12 or 5.5 hrs
In one hour Doug earns  $ 10.50 .
Therefore in 5.5 hour Doug earns  5.5  $  10.50  = $ 57.75 Â
Hence the total which Doug earned is  $ 57.75