The total salary, S, after a certain number of days, n, is 750n.
The person in question earns ₱750.00 for everyday that they work.
S is the total amount they gain if they work n number of days.
The amount of money they would have earned at any given time is:
= Salary per day x Number of days worked
= 750 x n
= 750n
S is therefore:
S = 750n
In conclusion, their total salary after n days is 750n.
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