29. Capital budgeting decisions are generally based on: O Tentative predictions of future outcomes. O Perfect predictions of future outcomes. O Results from past outcomes only O Results from current outcomes only O Speculation of interest rates and economic performance only The calculation of the payback period for an investment when net cash flow is even (equal) is: O Cost of investment/Annual net cash flow O Cost of investment/Total net cash flow O Annual net cash flow/Cost of investment Total net cash flow/Cost of investment Total net cash flow/Annual net cash flow