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| rev | Admin | (Created page with "'''Answer: B''' <math>\ddot{a}_{60: 101}=7.9555</math> <math>\ddot{a}_{60: 20}=12.3816</math> Annual level amount <math>=\frac{40+5 \ddot{a}_{60: \overline{101}}+5 \ddot{a}_{60: 20 \mid}}{\ddot{a}_{60}}=\frac{141.686}{14.9041}=9.51</math> {{soacopyright|2024}}") | Jan 19'24 at 20:26 | +264 |