Please help i will mark you as brainleist! all I need is question #2

The mean is 5.5

Step-by-step explanation:

The mean is defined as the average of the given numbers. That is the addition of the numbers divided by the total of numbers that have been added.

In your case the mean of the first ten counting numbers, you do;

the correct is answer is a 9-sided polygon!

the slope of the line is 60

one point on the line is (40,10)

step-by-step explanation:

in the equation outside the parenthesis the equation always tells you the slope. in this case it is 60.

in the parenthesis is also says 40 which is x because it is near the x and 10 is y because it is near y.