We can use the formula for heat transfer, which is $Q = mc\Delta T$, where $m$ is the mass, $c$ is the specific heat capacity, and $\Delta T$ is the change in temperature. For the water, we have $m = 115$ g, $c = 4.18$ J/g°C, and $\Delta T = 75 - T_f$, where $T_f$
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