Answer:
81 degrees
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
She wont complete the book in book in time at 4 pages per hour has she will only write 32 pages in 8 hours
Step-by-step explanation:
Marie has 8 hours to write 45 page chapter
at 4 page per hours, in 8 hours, she will on write
8 × 4 = 32 pages
Therefore, she wont complete it in time at 4 pages per hour
 
        
             
        
        
        
<em>Hey There!!</em>
<em>The answer is below!!</em>
Step-by-step explanation:
We move all terms to the left:

We add all the numbers together, and all the variables

 We get rid of parentheses

After that, We add all the numbers together, and all the variables

Then, We move all terms containing n to the left, all other terms to the right



<em>I don't know this is </em> % right....
% right....

# 
 
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Answer:
0.9%
Step-by-step explanation:
We have been given that Rich measured the height of a desk to be 80.7 cm. The actual height of the desk is 80 cm. 
We will use percentage error formula to solve our given problem.





Therefore, Rich's percent error in calculation is 0.9%.
 
        
             
        
        
        
Answer:
x=5
Step-by-step explanation: 
add 5 to both sides
-20+5 = -3x
-15=-3x   (divide)
x=5