Answer:
40%
Step-by-step explanation:
Ok so my brain is sorta not working but it said "hey! 20 divided by 2 is 10!"
So I was like ight and divided 80 by 2 to to get 40%. 
Hope this helps.
 
        
             
        
        
        
Answer:
279x
Step-by-step explanation:
 
        
                    
             
        
        
        
5x ÷ x² - 9 + 7 ÷ x + 3
Write the division as a fraction:
 - 9 + 
 + 3
Simplify the expression:
 - 9 + 
 + 3
Calculate the sum:
 - 6 + 
Write all numerators above the common denominator:

Add the numbers and you get the final answer:

 
        
             
        
        
        
Answer:
Step-by-step explanation:
137,745 mm
Becouse the diamter of the Half dollar is 2 double Than a raggio becoise u must moltiplicate it for Hal of the moneu u have... 4.5 x 30.61 
 
        
             
        
        
        
Step-by-step explanation:
1. The first graph has a negative slope (increases to the left) and has a y-intercept of 3. So, the equation of the line would be y = -2x + 3.
2. The second graph has a positive slope (increases to the right) and has a y-intercept of -3. Therefore, the equation of the line would be y = 2x - 3.
3. The third graph has a negative slope and has a y-intercept of -3. So, we can say that the equation of the line would be y = -2x - 3.
4. The fourth graph has a positive slope and a y-intercept of 3. Therefore, the equation of the line would be y = 2x + 3.