Answer:
Detailed answer for the question :
"The network and associated requirements for systems analysts and programmers for the GUMBY project are as follows: a. Draw the network. Compute ESs, LSs, and total slack times.b. Then show the separate resource loadings for systems analysts and programmers, assuming ESs.c. Suppose the maximum weekly availability is eight systems analysts and five programmers. Can activities be scheduled to satisfy these constraints without delaying the project"
Explanation: 
Consider page one of attachment only.
 
        
             
        
        
        
Answer:
c. cover the cost of producing and selling the product
 
        
             
        
        
        
The correct answer is either B or A
        
                    
             
        
        
        
It will take 8.04 years for the initial investment of $15000 to become $30,000
What is the future value of an investment?
The future value of $15,000 invested now earning a rate of return of 9% per year is $30,000, it the future equivalent of an amount invested now when the invested amount has earned interest over a specific period of time.
The below future value formula of single cash flow can be used to determine the number of years it takes for the initial investment to double.
FV=PV*(1+r)^N
FV=future value=$30,000
PV=initial investment=$15,000
r=rate of return=9%
N=number of years it takes for the initial investment to double=unknown(assume it is X)
$30,000=$15000*(1+9%)^N
$30000/$15000=(1+9%)^N
2=1.09^N
take log  of both sides
ln(2)=N*ln(1.09)
N=ln(2)/ln(1.09)
N=8.04 years
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