Answer:
Step-by-step explanation:
a daily pass cost 47.50 per day.......47.50d....where d = number of days
a season pass cost 390 pus a daily fee of 17.50......390 + 17.50d
when will they be equal...so set them equal and solve for d, the number of days
47.50d = 390 + 17.50d
47.50d - 17.50d = 390
30d = 390
d = 390/30
d = 13 <==== they will be equal in 13 days