Answer:
Id
I forget
Step-by-step explanation:
You can add up all the equal terms:
So for x: 6x-4x = 2x
For y: 2y
For the numbers: 3+7=10
53x12=636 that is your answer that is the way to estimate it your answer is 636 that is how many students can be seated
We can find h by calculating the area S of the parallelogram in two ways. We can write:

. On the other hand,

. Then: