Lexi started her homwork at 4:30 P.M. She finished at 5:05 P.M. How many seconds did it take her to finish her homework?

35 minutes times 60 = 2100 so 2100 seconds

35 minutes   You need to know that 60 seconds = 1 hour. 35 × 60 = 2100 The answer is 2100 seconds. HOPE THIS HELPED :)