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| rev | Admin | (Created page with "'''Solution: C''' <math display = "block">\begin{aligned} & 7 s_{\overline{45}|i}=\frac{75.6}{1.2 i} \\ & \frac{7\left[(1+i)^{45}-1\right]}{i}=\frac{75.6}{1.2 i} \\ & 7(1+i)^{45}-7=63 \\ & (1+i)^{45}=10 \\ & i=0.0525 \\ & X=7 s_{\overline{45} \mid 0.0525}=1200\end{aligned}</math> {{soacopyright | 2023 }}") | Nov 18'23 at 20:45 | +307 |