Answer:
8n+2
Step-by-step explanation:
You add 3n to 5n and that gets you 8n.
The 2 is just alone.
Answer60
Step-by-step explanation:
Answer:

Step-by-step explanation:
The change of distance over time of the plain A is 300 mi/hour and 200 mi/hour for plane B. O is the point of the airport.
So, the distance from A to O AO = 90 miles and BO = 120 miles.
Now, we have a right triangle here. We can use the Pythagorean theorem, so the distance between the planes will be:
(1)


If we take the derivative of the equation (1) we could find the change of the distance between planes.


Finally,

I hope it helps you!
There are 16 oz in a pound, so 2 lbs is 32 oz.