Answer:
r=5
Step-by-step explanation:
1.simplify both sides of the equation.
2.substract 2r from both sides.
3.substract 12 from both sides.
4.multiply both sides by 5/(11)
5. your answer will be 5.
r=5
 
        
                    
             
        
        
        
E. 65,000
f. 99,000
g. 60,000
h. 80,000
I. 900,000
j. 900,000
k.500,000
l. 700,000
        
                    
             
        
        
        
Answer:
<h2> D=C/4</h2>
Step-by-step explanation:
Given that elevation of the cities are 
A=72 feet
C=24 feet
D=1/4 of C
The expression for the elevation of city D is 
D=C/4
substituting C=24 in the expression we have
D=24/4
D=6
The answer is positive because the elevation is above sea level
 
        
             
        
        
        
Answer:
6.47  x  10^-2
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
11.
Step-by-step explanation:
I got the answer of 11, as I:
-First, I worked out how many rides Margaret would be able to go on, so I did $35 -/- $3, which was a decimal, but the most amount of times would be 11 rides that she could go on, therefore, that's the amount of rides she would take, and have $2 left over.
Hope this helps! 
--Emilie Xx