Answer:
Question 1:
B
Question 2:
False
Question 3:
B
Question 4:
A
Step-by-step explanation:
<em>Please let me know if these are wrong is that I can fix them.</em>
 
        
             
        
        
        
Answer:
24 years old
Step-by-step explanation:
Let Malvin's age be x.
-  x / 2
- x / 2 + 5 = 5x / 10  [ By taking the L.C.M.]
- ( 5x / 10 ) * ( 1 / 3 ) = 5x / 30   [ Multiply with the reciprocal of 3 ] 
-  ( 5x / 30 ) * 2 = 5x / 15
Now let's solve the equation,
5x / 15 = 8
        5x = 8 * 15
        5x = 120
          x = 120 / 5
          x = 24
Therefore, Malvin is 24 years old.
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Answer:
2
Step-by-step explanation:
Rise / Run 
= 4/2 
= 2
 
        
                    
             
        
        
        
300,000+20,000+40
Three twenty thousand, forty
        
                    
             
        
        
        
Answer:
a ≈ 8.9
Step-by-step explanation:
Set up the equation as so:
8a^2 + 2 = 634
First, subtract two from both sides:
8a^2 = 632
Then, divide by 8 to further isolate the variable.
a^2 = 79
To get rid of the squared, you have to take the square root of both sides. The square root of 79 is roughly 8.9. Ergo, a ≈ 8.9