Holly finds that (11m - 13n + 6mn) - (10m - 7n + 3mn) = m - 20n + 9mn. what error did holly make?
she only used the additive inverse of 10m when combining like terms.
she added the polynomials instead of subtracting.
she only used the additive inverses of -7n and 3mn when combining like terms.
she did not combine all like terms.

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