REA_Ex1_0708.pdf REA_Ex2_0708.pdf REA_Ex3_0708.pdf REA_Ex4_0708.pdf REA_Ex5_0708.pdf REA_Sol1_0607.pdf REA_Sol2_0708.pdf REA_Sol3_0708.pdf REA_Sol4_0708.pdf REA_Sol5_0708.pdf