135 g of aluminum (specific heat = 0.900 J/g°C, initial temperature = 400°C) is mixed with 168 g of water (specific heat = 4.186 J/gºC). When equilibrium is reached, the system has a
temperature of 80°C. Find the initial temperature of water.

Imagine you are a business executive who wants to pursue an environment policy for your company that limits pollution and uses fewer raw materials but would cost more what might be the discussion to your next broad meeting how would you make your case to your shareholders