Answer:
.5
Step-by-step explanation:
Going from WHB to RVM means that we need the number to multiply by to get to RVM, the smaller triangle.
Multiplying by .5 is the same as dividing by 2.
20 x .5 = 10
16 x .5 = 8
12 x .5 = 6
The answer can be any of the following:<span> 12/10, 18/15, 24/20, 30/25, 36/30, 42/35, 48/40, 54/45, 60/50</span>
Slope:

Slope is rise over run. It is a ratio of the amount of the y-axis over the amount of x-axis. So, now assign the first group of numbers, (-2,-3) as 1; then the second group, (1,1) as 2. Like this:

Notice the subscripted numbers designate the group number. Next, plug in the numbers and do the math.

So, the slope, m, is equal to four thirds.
m = 4/3