Answer:

Step-by-step explanation:
A student earns a day to deliverer a newspaper= $25
She delivers for d days .
So she earns in d days = $25d
She also earns extra charges for each newspaper = $0.75 = 
If she delivers n newspapers .
So. she earns extra charges for n newspapers = 
Now we are also given that She earns $5 for each new customer .
If she has c new customers .
So, she earns for c customers = $5c
So, her total earning = 
Let T denotes the total earning .
So, 
Thus Option 2 is correct.