Carlie, samantha, lily, and maria ran the 400-meter relay today at the track meet. if their times were 12.8 seconds, 13.25 seconds, 12.06 seconds, and 13.12 seconds, what was their total time for the race (in seconds)?
a. 40.13 seconds
b. 39.71 seconds
c. 51.13 seconds
d. 51.23 seconds

  D.  51.23 seconds

Step-by-step explanation:

The total time is the sum of individual times:

  12.8 +13.25 +12.06 +13.12 = 51.23 . . . seconds

answer: c

because if you look at the chart you can see a pattern and compare it to the question he simplify out your

but i think the formula is f(x)=6x

25% is the answer