Please help

Eric lled his water bottle at the sink, but it was warm and not refreshing. He nds ice in the freezer, drops an ice cube in, puts the lid on, and waits for the ice cube to completely melt. He hopes it will make the water cool enough to be refreshing. The ice cube initially has a mass of 64.0 g and a temperature of 0C. Eric assumes the water is pure and knows its volume, so knowing the density of water he can state the mass of the water (before the ice cube is added) is 769.0 '9. Eric also assumes the initial temperature of the water is the same as the outside temperature of that day, which his phone says is 26.0C. What is the nal temperature (in C) when the .ice nishes melting and mixes with the other water? (Assume no energy is lost to the walls of the container, or to the environment since the cap was put on.) C