Heat of Fusion of Water — Please help!!

I’m not sure how to start this problem:
Given that the heat of fusion of water is -6.02 kJ/mol, that the heat capacity of H2O (l) is 75.2 J/mol*K, and that the heat capacity of H2O (s) is 37.7 J/mol*K, calculate the heat of fusion of water (in kJ) at -14 C.

Any help would be greatly appreciated!!

Than…

Problem 16-18 Using net present value and internal rate of return to evaluate investment…

Veronica Tanner, the president of Tanner Enterprises is considering two investment opportunities. Because of limited resources, she will be able to invest in only one of them. Project A is to purchase a machine that will enable factory automation; the machine is expected to have a useful life of fou…