Specific Heat

$\mathrm{}\mathrm{}\mathrm{}\mathrm{}$How much energy is absorbed or lost in each of the following? Calculate your answer in both calories and joules.

a$.$ the energy needed to heat $50.�$ of water from $15°�$ to $50.°�$

b$.$ the energy lost when $250�$ of aluminum is cooled from $125°�$ to $50.°�$