3. Round off the following numbers to three significant digits: 1) 120000 _______________ 2) 4.53619 _______________ 3) 5.457 _______________ 4) 43.659 _______________ ****** Part 2 ****** (a) Round 0.709 to one significant figure .......................... (b) Round 84472 to three significant figures .......................... (c) Round 12490 to two significant figures .......................... (d) Round 5607012 to three significant figures .......................... (e) Round 0.123456 to four significant figures Part 3 A Sad Song About Greenwich Village She lives in a garret Up a haunted stair, And even when she’s frightened There’s nobody to care. She cooks so small a dinner She dines on the smell, And even if she’s hungry There’s nobody to tell. She sweeps her musty lodging As the...