Since each min is 60 seconds you multiply 60 by the number of minutes which is 7 and you get 420:
60x7=420 Then you add 30 seconds equaling 450 seconds total
Then you divide 450 by 4 since she ran 4 laps.
So, Stephanie ran 112.5 seconds per lap
Answer:
e - 3 = 15
or if you're looking for the answer to the problem
18
Step-by-step explanation:
The answer is the third one or c
