This is my answer. Hope that it will help you.
We can find h by calculating the area S of the parallelogram in two ways. We can write:

. On the other hand,

. Then:
Answer:
6 vans
Step-by-step explanation:
If 1 van can seal 18 students...
116 ÷ 18 = 6.4
Since it's not a whole number, we will estimate it to the nearest whole number which is 6.
Answer:
-40
Step-by-step explanation:
Since x is 10 you need to multiply 10*-4 which equals -40.