Answer:
square root of 81
Step-by-step explanation:

so 9 is rational number.
the rest are irrational number
Answer:
30
Step-by-step explanation:
The total number of people is
5+6+4+7+5+3 = 30 people
Answer:
6 x (3-2) = (6 x 3 ) - ( 6 x 1)
Step-by-step explanation:
multiply them together and find out how to distribute it.
18 - 6
(6 x 3 ) - ( 6 x 1)
The answer is 9:1. All you have to do is simplify it
Y1-y2 over x1- x2 you should be able to figure it out after this formula