Answer:
Is that supposed to be
7 1/2? If so, answer is 8
Step-by-step explanation:
7 1/2 + 1/2=8
<h2>
Length of track is 168 meter</h2>
Step-by-step explanation:
Let l be the length of track.
Running speed = 4 m/s
Jogging speed = 2 m/s
Total time taken = 2 minutes 6 seconds. = 126 seconds
That is

Length of track is 168 meter
It’s an exponential graph. You can tell by the way the line is curved.
Answer:3b+10
Explanation:Distribution:5(b+2)-2b
5b+10b-2b
Combine like terms:5b+10b-2b
=3b+10