a * 2 + a * 3 +1985 = 5680

a * 5 = 5680 - 1985 = 3695

a = 3695 / 5

a = 739

32 tuổi

nhé

1260

k cho mình

45% của 500 là

        500:100*45=225

                    Đáp số : 225

a) he started to play the guita in 2012 - he has not played the guitar since 2002

b) i haven't phoned him for along time - the last time I phoned him was a long time

c) he last spoke to me since last christmas - he has not spoken to me since last chrismas