Answer:
36 inches.
Step-by-step explanation:
Write the rectangles as ratios.
First= 10:12
Second= 30:x
You can see that the second is 3 times as large as the first. Therefore, the second height must be 12*3. 12*3=36
Least = -3, 1/-8, 1/9, 8/3
Hope that helps!