Pennsylvania has a land area of 44,816 square miles. what is the land area of pennsylvania rounded to the nearest hundred? how do you know?

Step-by-step explanation:

we know that

To Round a number

a) Decide which is the last digit to keep  

b) Leave it the same if the next digit is less than (this is called rounding down)  

c) But increase it by   if the next digit is   or more (this is called rounding up)

In this problem we have

We want to keep the digit

The next digit is which is less than , so no change is needed to

therefore

the answer is  

51

step-by-step explanation:

73-22=51 the   mass number minus the amount of protons gives you the amount of neutrons

the function makes a strait line horizontally with no x intercept but a y intercept at 9.