√70 is between which two numbers on the number line?
A) 6 and 7
B) 7 and 8
C) 8 and 9
D) 9 and 10

Answer:
C) 8 and 9
Step-by-step explanation:
We know that 70 is between two perfect squares.
The square numbers 64 and 81 can help us solve this question.
64<70<81
We take square root to get:
[tex] \sqrt{64} \: < \: \sqrt{70} < \sqrt{81} [/tex]
We simplify this to get:
[tex]8 \: < \: \sqrt{70} \: < \: 9[/tex]
Therefore √70 is between 8 and 9.
The correct option is C.