9.
given that 4: 5: 8 is equivalent to 1: n: b. find the ratio of n: b only.

Step-by-step explanation:

So 4:5:8

= 1:n:b

which means that 4/n= 1  

n= 1x4 so n=4

Now we know that 4 is divided by 4 to get 1, so we do the same for the other two values.

5/4= 1.25 and 8/4= 2

So now place the values for n:b

n= 1.25 b=2

So n:b= 1.25:2

To check, multiply each of the values in 1:1.25:2 by 4 and see if the answer you get is the same as 4:5:8.

the solution is h=10 because you add 9 to each side of the equation.

answer: the answer is 5/22

step-by-step explanation: if you subtract 17 from 22 the answer is 5 therefore the remainder of students are female