Look at polygon wxyz and its reflection. if wz is 7 in. long, what is the length of w'z' ? square root of 5 in.4 in.7 in.6 in.

What are the exclude value of mn+3m

How many sides does a regular polygon have if each exterior angle measure is 45 degrees explain your answer, i really don't understand this.

Two friends are reading books. jimmy reads a book with 21,356 words. his friend bob reads a book with one-and-a-half times as many words. which expression represents the number of words bob reads?