Alphabet A doesnt pay dividends at the moment The Corporate
Solution
Alphabet A\'s intrinsic value would be determined by the sum of the present values of the firm\'s Free Cash Flows in the first three years plus the present value of the firm\'s terminal cash flows.
WACC = 9 %
PV(present value) of first three years\' FCF = 20.2/1.09 + 22.5/(1.09)^(2) + 24.5/(1.09)^(3) = $ 56.38 billion
Beginning from Year 4, FCF grows at a constant rate of 6 % perpetually.
Year FCF = 24.5 x 1.06 = $ 25.97 billion
Terminal Value (TV) of perpetual FCF = 25.97/(0.09 - 0.06) = $ 865.67 billion
PV of TV of Perpetual Terminal FCF = 865.67/(1.09)^(3) = $ 668.46 billion
Total PV of all FCFs = Firm Intrinsic Value = 56.38 + 668.46 = $ 724.84 billion approximately.
Intrinsic Value of Equity = Firm Intrinsic Value - Market Value of Debt = 724.84 - 9.3 = $ 715.54 billion
Number of Common Stock Outstanding = 0.3 billion
Intrinsic Share Price = 715.54 / 0.3 = $ 2385.13
As the current price in #6 is missing, one can recommend that if the current stock price is more than the intrinsic share price, the stock is overvalued and should not be bought. However, if the current price is less than the intrinsic share price, the stock is undervalued and should be purchased.

