Final answer:
To find the number of telephone poles needed, divide the length of the track by the distance between each pole. In this case, Rob needs 1 telephone pole for his track.
Step-by-step explanation:
To find the number of telephone poles needed, we need to divide the length of the track by the distance between each pole.
The length of the track is 3 and 3 over 8 feet.
The distance between each pole is also 3 and 3 over 8 feet.
So, to find the number of telephone poles, we divide 3 and 3 over 8 by 3 and 3 over 8, which equals 1 pole.
Therefore, Rob needs 1 telephone pole for his track.