Answer: Hope This Helps!
Examples:
1: How fast things such as cars and trains can go. Have you ever thought about how their speeds are calculated? When a police officer gives someone a speeding ticket, how do they know for sure if the person was speeding? Well, they use a simple linear relationship called the rate formula.
2: So, if someone spent 1 hour traveling a distance of 80 miles on a 55 mph road, then you can be sure that they were speeding because 80 miles divided by 1 hour gives you 80 mph. At first glance, this formula looks like it doesn't fit the criteria because it looks like it has three variables. But, it really is a linear relationship because at least one of your variables will always be a constant depending on your problem. You can have a constant rate for which you have to solve for distance or time. The relationship would be 35 = d / t or whatever the given rate is. It's the same if the distance is given as the constant, r = 100 / t.
3: Another example is that of converting temperature from Fahrenheit to Celsius. If you live in the United States, you probably use Fahrenheit, but if you discuss weather with a friend who lives in a different part of the world, you may need to convert the temperature to Celsius. You can use the conversion formula to convert one temperature type to the other.
The answer is C. Mono refers to one while poly refers to multiple. Hope this helps :)
The answer is B. Because the Earth’s atmosphere is mostly nitrogen and oxygen.
