Answer:
This is a ratio table,so therefore there is always a pattern.
Step-by-step explanation:
In order to solve,you have to find the constant in the question,such as 30,40,50,and 60.The constant in this example is 10.When the constant is <u>not</u> even,or the numbers are <u>not</u> even,that's the time you pull out your notebook multiplication chart.Look at the numbers,and see if those numbers are on the chart.If all of them are on the chart,then see if one or both of the multiplicable numbers fall under the category of your variables.If all are under one number,then that number is your answer.
Answer:
1
Step-by-step explanation:

Red line slope=3/4
Blue line slope=2/3
Answer:
C
Step-by-step explanation:
The equation of a line is given by the formula 
Where
is the x-coordinate (it is given as 5)
is the y-coordinate (it is given as 1), and
m is the slope (it is given as -3)
Plugging in all the info into the formula we have:

From the answer choices, we see that C is the correct answer.
Answer:
82 kg
Step-by-step explanation:
To find the mean of a set of values, we must add them up and divide by the number of values.
Step 1, adding the values:

Step 2, dividing by the # of terms:
There are 9 terms in total.

To the nearest kilogram, we can round 81.556 into 82.
The mean mass of the 9 men was
kg.
<em>I hope this helps! Let me know if you have any questions :)</em>