Which tool could be used to model wave motion during a scientific investigation? A: beam balance
B: mirror
C: prism
D: slinky spring

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?

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?

Miss henderson wants to build a fence around a rectangular garden in her backyard in the scale drawing the perimeter of the garden is 14 in of the actual length of a b is 20 ft how many feet of fencing what you need