1. how many positive integers have a value between the square root of 8 and the square root of 72?

2. what is the 65th odd number ?
a. 125
b. 133
c. 131
d. 127

1. sqrt 8 = 2.8
sqrt 72 = 8.5
There are 6 positive integers between these numbers (3 to 8).

2. So the 65th odd number is 2 * 65 – 1 = 129.
[Kindy note that the correct answer is not there in the options given.]