The table below shows the numbers of pencils and pens three friends have in their backpacks: Farrah

10

7

Amle

9

6

Tessa

12

9

Who has the greater ratio of pencils to pens and why? Justify your answer.

An advertising firm has an old computer that can prepare a whole mailing in 6 hours. with the of newer model the job is complete in 2 hours. how long would it take the newer model to do the job alone?

Question part points submissions used suppose that 100 lottery tickets are given out in sequence to the first 100 guests to arrive at a party. of these 100 tickets, only 12 are winning tickets. the generalized pigeonhole principle guarantees that there must be a streak of at least l losing tickets in a row. find l.

What is the solution of the systems of equations? y=2/3x+3 x=-2