It is just asking you to reorder the number so that the smallest number is first and the largest number is last.
The answer is: 8, 8.261, 8.4, 8.634
Can you state how many marbles there are al together and how many there are of each colour
First you'll use the slop formula to find the slope.
Slope =

Slope =

Slope =

Slope =

Now we write the equation.
y = mx + b
y = -3x + 9
In this equation -3 is the slope and 9 is the y-intercept.
Hope this helps :)