Answer:
Total Earning = 15b + M(N - b)
where:
b is the total hours worked as a tutor
M is the amount earned by Deshaun per hour as a waiter
N is the total number of possible hours Deshaun can work in a month
Explanation:
Let the number of hours Deshaun works daily as a waiter be w
and the time worked daily as a tutor be t
Deshaun earns $15 per hour as tutor hence daily earnings on tutoring = 15t
Let Deshaun earn $M per hour as waiter, hence daily earning as a waiter is Mw
The total possible hours Deshaun can work in a month is dependent on conditions not specified.
However, assuming 24 working days (6 days weekly for 4 weeks) in a month with maximum approved work hours of 12 hours daily
total hours Deshaun can work will equal 24 x 12 = 288hrs
Note: This 288hrs is an estimate and can change based on applicable hours of work daily and number of working days in a month; it can also be represented as N
If b is the total hours Deshaun worked as a tutor this month,
the hours Deshaun can work as a waiter in a month is equal to 288 - b
Hence in a month, Deshaun will earn 15b as a tutor and M(288-b) as a waiter or optionally M(N - b)
Therefore combined dollar amount earned in a month is
Total Earning = 15b + M(N - b)