C they want to keep the air cleaner so they will make it more efficient.
Answer:

Explanation:
Given:

Required:
Coordinates of the Midpoint of HX
Solution:
Midpoint (M) of HX, for
is given as
.
Let 

Thus:

Convert to improper fractions





B a hurricane, because it’s a naturally occurring event
The USDA has a food label/sticker the consumer can search for and observe to identify an organic product.