What must be true in order for line A to be parallel of line b?

What signals you that factoring by grouping is the best method to use when factoring a problem?

Nine more than four times a number is the same as one less than twice the number. find the number?

Two students were asked if they liked to read. is this a good example of a statistical question? why or why not? a yes, this is a good statistical question because a variety of answers are given. b yes, this is a good statistical question because there are not a variety of answers that could be given. c no, this is not a good statistical question because there are not a variety of answers that could be given. no, this is not a good statistical question because there are a variety of answers that could be given