Step-by-step explanation:
To give you a hand for this question, I will show you how to work out one of the equations
One equation is 
We know that when x = -2, y = 6
So we can substitute in -2 and see if we get 6
So this equation is true! Now try the same for the other equations :)
Let x = quantity of bicycles
($160x) - ($80x) = $2800. To solve for x, we have to combine the terms on the left side.
$80x = $2800. Divide each side by $80.
x = 35.
35 bicycles must he sold each month to break even.
An example of a situation where the measures of central tendency can be applied is when analyzing the test scores of a Math exam taken by 11 people.
<h3>What is an example of measures of central tendency in use?</h3><h3 />
Assuming that 11 people took a Math exam that was graded out of 20 and got the results:
6, 8, 9, 10, 10, 14, 15, 15, 15, 18, 18
The median in this set would be 14. This would therefore show us what the person with the middle score got which is useful in knowing the whether people were above the middle score, or below it.
The mode in this dataset is 15 which shows that 15/20 was the score that was most acquired by people who took the exam.
The mean is:
= (6 + 8 + 9 + 10 + 10 + 14 + 15 + 15 + 15 + 18 + 18) / 11
= 12.5
On average therefore, people got a score of 12.5 in this example. This gives an overall view of the difficulty of the exam.
Find out more on the measures of central tendency at brainly.com/question/17631693
#SPJ1
It's 6/12 then 1/2. Good luck
It's not 'A'.
All the angles on the same side of a straight line
have to add up to 180°.
With that hint, you can do it now.
