Help me pls i really need some help :)

I'm not sure but from my thinking I think it is 40%

Step-by-step explanation:

I think like this ⬇️

.

100% × [ Number of people for each hair color /25(all people) ]

.

brown hair = 100% × (10/25) = 40%

.

Do the same for the other three hair colors.

.

black = 32%

blonde = 20%

red = 8%

Hope it helps you.

do i do it on a graph?

step-by-step explanation:

1.3

step-by-step explanation:

3x2=6   9x+6

bring down the 6 on both sides

6+6=12

12= 9x

divide by 9

12/9 =

1.3 =x