The correct option will be: C. 
<em><u>Explanation</u></em>
The repeating decimal given is:
which means 2.1111111111..........
Suppose, the given number 2.1111111111.......... as 
Here the repeating digit is 1 . First, we need to move the decimal point after the repeating digit. So we can do that by multiplying both sides by 10. Thus....

Now subtracting the above two equations , we will get.....

So, the given repeating decimal be expressed in a fraction as 
Answer:
F=0.4t
Step-by-step explanation:
Find the slope using the formula rise over run or y2-y2 over x2-x1
y2=72 y1=64 x2=25 x1=5
72-64/25-5=8/20=0.4
60 = 2x - 16
2x= 16+ 60 = 76
76 / 2 = 38
Hope this helps!
Best of luck
Answer:
x = 6 1/4
y = 3 3/4
Step-by-step explanation:
let 'x' = gallons of 6% nitrogen
let 'y' = gallons of 30% nitrogen
system of equations:
x + y = 10; let y = 10-x
6x + 30y = 10(15)
substitute '10-x':
6x + 30(10-x) = 150
6x + 300 - 30x = 150
-24x = -150
x = 6 1/4
y = 3 3/4