Answer:
30%
Step-by-step explanation:
394,070-275,849= 118,221
118,221/394,070=0.3=30%
I think the answer is X=1/4y+-3/4
Answer:
1. 
2. 
3. 
Step-by-step explanation:
1. 
I like to make it an improper fraction first.

Now take the LCM. The LCM is 20.

Now add them.

Make this into a mixed number.

That's your answer for number 1.
2. 
Do the same thing as the previous addition problem but subtract instead.



is your answer for number 2.
3. 



is your answer for number 3.
I hope this helps! Let me know if you need help or if I got anything wrong :)
Using the given linear function, the formula underestimates the median weekly earnings in 2013 by $3.
<h3>What is the linear function for the estimate?</h3>
The function that estimates the median weekly earnings n years after 1980 is given by:
W = 13n + 231.
2013 is 2013-1980 = 33 years after 2000, hence the estimate is given by:
W = 13 x 33 + 231 = 660.
Since 657 < 660, the formula underestimates the median weekly earnings in 2013 by $3.
More can be learned about linear functions at brainly.com/question/24808124
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Answer: D
Step-by-step explanation: