Answer:
4:42
Step-by-step explanation:
Every time the difference between the times increases by 2, with 21 being the initial difference.
So we have the formula [tex]21+2n[/tex] for the difference.
The next term in the sequence will be the 6th term, so the differnce will be 21+12 = 33.
33 minutes before 5:15 is 4:42