2/pi
I took the test and got it correct.
        
                    
             
        
        
        
Answer:
2
Step-by-step explanation:
hector(50)- lee(48)
2
 
        
                    
             
        
        
        
a.) 1/2n 4=3−5/n b.) 1/2(n 4)=5/n−3 c.) 1/2(n 4)=3−5/n d.) 1/2n 4=5/n−3 
Let's assume the number be n.
So, sum of number and four can be written as n+4.
Now one-half of n+4 will be  .
.
Quotient of five and the number can be written as  .
.
Now three less \frac{5}{n} can be written as \frac{5}{n} -3.
So, one-half the sum of a number and four is three less than the quotient of five and the number can be converted into equation as follows:

So, b is the correct choice.
 
        
                    
             
        
        
        
Answer:
30 feet
Step-by-step explanation:
Interesting question. 
- 1 cubit = 18 inches
- 20 cubits = x
- 1/20 = 18/x       Cross multiply
- x = 20 * 18
- x = 360 inches.
The maximum height is 360 inches.
- 1 foot = 12 inches
- x feet = 360 inches   Cross multiply
- 12x = 360 * 1
- 12x/12 = 360/12
- x = 30
The maximum height reached was 30 feet.