9. which number is rational?
(1) square root of
(2) pi (symbol)
(3) 5 square root 9
(4) 6 square root 2

5 square root 9

Step-by-step explanation:

A rational number is a number that can be put in fraction form.

You can easily take the square root of 9 to get 3, which you can multiply by 5 to get 15.

Since you can make 15 into 15/1, which is a fraction, it is rational.

78.59 is the mean

step-by-step explanation:

f is the midpoint of