Answer:
Fred would take 33 days to save $ 70.95.
Step-by-step explanation:
The number of days ([tex]t[/tex]) is directly proportional to the quantity of money saved ([tex]c[/tex]), in monetary units, then we can calculate the time taken to save $ 70.95 by simple rule of three:
[tex]t = 17\,d\,\times \frac{\$\,70.95}{\$\,36.55}[/tex]
[tex]t = 33\,d[/tex]
Fred would take 33 days to save $ 70.95.