A metal object, with mass mₘ​ of 7 kg, temperature Tₘ​ of 358 K, and specific heat capacity cₚ,ₘ​ of 490.0 (J)/(kgK), is submerged into water. The mass of water mᵥᵥ​ is 18 kg, and its temperature is 295 K. What will be the final equilibrium temperature of the system?
a) 300 K
b) 305 K
c) 310 K
d) 315 K