Answer:
Under a) r=0.1;Id=50;Cd=750;P=7 b) P only changes and is now 9.33
Explanation:
a)  In a closed economy national savings are equal to investments or:
S d = I d = Y - Cd - G
Id = Y - 100 - 0.8*Y + 500*r - 0.5*G
100 - 500*r = 0.2*Y -100 + 500*r -0.5*G
200 - 1000*r = 0.2*1000 - 0.5*200=100
-1000*r=-100
r= 0.1
i = 0.15
Id = 100 -50 =50
Cd= 100 + 800 - 50 - 100=750
P = Md/Y-2000 i
P= 2100/1000 -300=7
b) If money supply increases to 2800, the price level would be:
P = 2800/Y - 2000*i = 2800/Y- 2000*(i-inflation) 
However, since the variables determining real interest rate remained the same, r is also the same or 0.1 and i is 0.15. Consumption and investment remain the same, only price level changes or:
P=9.33   
 
        
             
        
        
        
Answer: Market survey
Explanation:
One of the ways to determine what customers want is my doing s survey. A survey would guide you through what they want. One of the ways to do this survey to get accurate answers is through questionnaire's, questionnaire's could be sent through mobile or advert or mails, asking what exactly what the customers want, from the feedback, the owner can predict accurately.
 
        
             
        
        
        
Answer:
The average collection period is 56.25 days
Explanation:
The average collection period is the number of days' sales in receivables and calculated by using following formula:
The number of days' sales in receivables = 360/Accounts receivable turnover ratio
Accounts Receivable Turnover = Net Credit Sales/Accounts Receivable
Net Credit sales = Total Sales - the sales are for cash = $1,800,000 - 20% x $1,800,000 = $1,440,000
Accounts Receivable Turnover = $1,440,000/$225,000 = 6.4 times
The number of days' sales in receivables = 360/6.4 = 56.25 days
 
        
             
        
        
        
Answer:
Yea janelle like to keep all her savings good for her
Explanation: