Answer:
The Accounting Equation states that;
Assets = Liabilities + Equity
Equity as at 2016 = Assets - Liabilities 
= 50 - 13
= $37 million 
Equity as at 2017 = Assets - Liabilities 
= 77 - 18
= $59 million 
1. Timmy issued $13 million of stock and declared no dividends.
<em>The Net Income ( loss) will be the figure that gives the Statement of Equity a figure of $59 million.</em> 
Net Income = Total stockholders' equity, January 31, 2017 - Total stockholders' equity, January 31, 2016  - Issuance of stock
= 59 - 37 - 13
= $9 million
Total stockholders' equity, January 31, 2016  ................ 37
Add: Issuance of stock
......................................................... 13 
Net income  ......................................................................9
Less: Dividends declared......................................................0
Net loss.......................................................................................0
Total stockholders' equity, January 31, 2017...................59
2. Timmy issued no stock but declared dividends of $17 million.
Net Income (loss) = Total stockholders' equity, January 31, 2017 - Total stockholders' equity, January 31, 2016  + Dividends Declared
= 59 - 37 + 17
= $39 million 
Total stockholders' equity, January 31, 2016  ................ 37
Add: Issuance of stock
......................................................... 0 
Net income  ......................................................................39
Less: Dividends declared......................................................(17)
Net loss.......................................................................................0
Total stockholders' equity, January 31, 2017...................59
3. Timmy issued $20 million of stock and declared dividends of $27 million.
Net Income (loss) = Total stockholders' equity, January 31, 2017 - Total stockholders' equity, January 31, 2016  + Dividends Declared -  Issuance of stock
= 59 - 37 + 27 - 20
= $29 million
Total stockholders' equity, January 31, 2016  ................ 37
Add: Issuance of stock
......................................................... 20
Net income  ......................................................................29
Less: Dividends declared......................................................(27)
Net loss.......................................................................................0
Total stockholders' equity, January 31, 2017...................59