In the diagram shown, what is the ratio of shaded parts to unshaded parts? 6 unshaded squares and 9 shaded squares.
For every 2 shaded parts there are 3 unshaded parts.
For every 9 shaded parts there are 2 unshaded parts.
For every 3 shaded parts there are 6 unshaded parts.
For every 3 shaded parts there are 2 unshaded parts.

For every 3 shaded parts there are 2 unshaded parts

Step-by-step explanation:

because there are 3 blue shaded and 2 white that have not been shaded

sites:

x is the total time in minutes for the free response

you are given number of questions as 15 - m and time per item as 8 minutes

to find x multiply the two givens together:

x = 8 * (15-m) = 8(15-m)