Once...
you can make the number nine twenty times
how many NFL season ticket holders
You can only use the code word "ticket" one time.
This has happened once, in 2008.
No times.
25 times
3.48314606741573 times
280 times
10 000 if you can start with zero.
That depends on many variables.Distance of the journey. Time of the journey, peak times are more expensive. When you bought the ticket, they are usually cheaper if bought in advance. Class of ticket, do you qualify for a student or old person discount and many other variables.
150 can go into its multiples an infinite number of times.
An exponent tells how many times a number is used as a factor.