Physics help plz!! easy 10 points! =]?

Ideally, when a thermometer is used to measure the temperature of an object, the temperature of the object itself should not change. However, if a significant amount of heat flows from the object to the thermometer, the temperature will change. A thermometer has a m of 28.4 g, a specific heat capacity of c = 818 J/(kg C�), and a temperature of 14.6 �C. It is immersed in 143 g of water, and the final temperature of the water and thermometer is 59.8 �C. What was the temperature of the water in degrees Celsius before the insertion of the thermometer?