Answer:
4/5x+3
Step-by-step explanation:
remove the useless parenthesis, then calculate the x sum then the normal numbers sum
 
        
             
        
        
        
Answer:7pi\4
Step-by-step explanation:
 
        
                    
             
        
        
        
Change 48% to 0.48 
0.48 x 18 = 8.64 
rounded would be 9
        
             
        
        
        
Answer:
34 feet
Step-by-step explanation:
From the question, we are told that:
 If the room is 30 feet high at the center and 90 feet wide at the floor, 
Entire width of the room = 90 feet = 2a
a = 90/2 = 45
Height of the room = b = 30 feet
Foci (c)² = a² - b²
c = √a² - b²
c = √45² - 30²
c = √1125
c = 33.541019662 feet
Approximately to the nearest whole number = 34 feet 
Denise and Donna should each stand 34 ft from the outer wall so that they will be positioned at the foci of the ellipse
 
        
             
        
        
        
C: 60.9% is the right answer
Step-by-step explanation:
The markup is calculated by using the formula

Given
Make Price = $22.99
Selling Price = $36.99
So the mark up will be:

Percent mark up will be:

Rounding off to the nearest hundredth percent
60.9%
Hence,
C: 60.9% is the right answer
Keywords: Markup, Percentage
Learn more about percentage at:
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