Triangles ABC and PQR are given. ABC = PQR by SAS. If m m AB = 5y-7,
and PQ = 3y - 1,
then which of the following statements are true? Select all that apply.

A) AB=8
B) m C) y=1
D) x is seven units greater than y.
E) M F) PQ= 3

Abby is collecting rainfall data. she finds that one value of the data set is a high-value outlier. which statement must be true? abby will use a different formula for calculating the standard deviation. the outlier will increase the standard deviation of the data set. the spread of the graph of the data will not change. abby will not use the mean when calculating the standard deviation.