Answer:
40%
Step-by-step explanation:
First off, 1/5 is equal to 20%. If you're diving something into 5ths, you can do 100 / 5, which is 20. So you know that Raul scored at least 20% of the points. His friend Jake ALSO scores 20% of the teams points, making 20 + 20 = 40%. Therefore, 40% of the teams points were scored by Raul and Jake.
Answer:

Step-by-step explanation:
The formula of the circumference of a circle is
.
The length of an arch can be found by using the ratio of circumference to the arc.
First, find the circumference of the circle:

Then you find the ratio:
The length of the arc is 90/360, which is 1/4, of the circumference.
Finally, find the length of the arc:
or 
I hope this helps :)
42 can be
1 x 42, or
2 x 21, or
3 x 14, or
6 x 7 .
Answer:
B) Median
C)he median is between 80 and 90.
D) The mean test score will increase by 2.
Step-by-step explanation:
(x/8)+(1/2)=7/8
X/8=7/8-1/2
X/8=7/8-4/8
X/8=3/8
X=3