What is 7/11 in decimal for rounded to the nearest thousandth

Aclassmate thinks that solving a system by graphing gives an exact answer when the lines appear to cross at a grid point, but only an approximate answer when they don't. explain why this isn't true.

Which of the following is closest to 32.9 x 7.5? a: 232 b: 259 c: 220 d: 265

John has 1/2 pound of oranges to share with julie. if they share the oranges equally, how much will each of them have?