What is the nth term for
- 2, 7, 22, 43

Ihave trouble finding the nth term of a linear sequence

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?

How can you find the magnitude of a vector, v = < x,y > , where the horizontal change is x and the vertical change is y?