Answer:
D: 10 laps in 215 seconds
Step-by-step explanation:
86/4 = 21.5 seconds per lap
I went through and multiplied each lap number by the time per lap and the last one, D is the right answer!
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Wait is it not at all 14.5 or 14 1/2 Because with the math I did I got 14 1/2
Given:
The two functions are:


To find:
The
. Assume
.
Solution:
We have,


Now,





Therefore, the correct option is A.
You can use addition to solve this problem. 7+_= 15