Answer:

Step-by-step explanation:
Divide both sides by 

Simplify:
; 
<h2>9</h2>
To find the median the first thing we need to do is organize the numbers from smallest to largest:
6 7 8 8 9 10 13 14 15
Then if the amount of numbers is odd, the median is the number which is in the middle. In this case the middle number is 9.
6 7 8 8 9 10 13 14 15
Hope this helps mate! Best of luck to you. :)
Answer:
2 sets of possible solutions:
x=3, y = 5
and
x=-1, y = -3
Step-by-step explanation:
Using the graphical method, (see attached)
you can graph both equations and find their intersection points.
From the attached plot, you can see that the graphs intersect at (3,5) and (-1,-3)
Alternatively, you can solve this numerically by solving the following system of equations. You will get the same answer.
y = 2x + 1 ------------------- eq. (1)
y = x² - 4 ------------------- eq. (2)
Answer:
The awnser is C. 4 hours
Step-by-step explanation:
It takes her 2 hours two walk 1 mile so 2*2 is 4