X + 11 < 20 What is the answer to do? And how do you solve it?

What is the percentile for data value 6 in the following data set? 4 13 8 6 4 4 13 6 4 13 2 13 15 5 9 4 12 8 6 13 40 25 35 62

Ann and betty together have $60 ann has $9 more than twice betty’s amount how much money dose each have

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.