Answer:
$12,600
Step-by-step explanation:
Particulars Amount 
a. Issue common stock for cash $40,000 
b. Purchase building and land with cash, -$25,000 
c. Provide services to customers on account $6,000 
d. Pay utilities on building -$500 
e. Collect $4,000 on account from customers $4,000 
f. Pay employee salaries -$8,000 
g. Pay dividends to stockholders -$3,900 
  Net Cash Flow $12,600