Answer:
The answer is A.
Step-by-step explanation:
Given that Winnona took 5 tests and retake Test 5. So the mean score for this question is Total number of scores divide by Total number of tests is equals to 87 :
Let Test 5's score be x,
Let mean score be 87,

Next you have to solve the value of x :

I am not sure I am right but I think it depends on the size of the X.
Answer:
14.32
Step-by-step explanation:
We can find the distance using the distance formula:
We then substitute (-2,8) as
and (11,2) as
.
Answer:
20.5
Step-by-step explanation:
n=14.9+5.6
n=20.5
2 meters are 200 centimeters
you will need to know how many friends she has...
but, supposing she has 4 friends, each friend would get 50 centimeters...
i'm not really sure how to write that in a mixed number, but I hope this helps!!