At an office supply store, Rachel bought 5 erasers, 15 pens, and 40 pencils. What is ratio of the number of erasers to the number of pens to the number of pencils she bought?

1:3:8

Step-by-step explanation:

The original ratio erasers:pens:pencils is 5:15:40. Since the greatest common factor is 5, we can divide all the numbers by 5.

Therefore the ratio is 1:3:8

step-by-step explanation:

y = | -2(-2) |     →     y = | 4 |     →     y = 4       ⇒   (-2, 4)

y = | -2(-1) |     →     y = | 2 |     →       y =   2       ⇒   (-1, 2)    

y = | -2(0) |     →     y = | 0 |     →       y = 0         ⇒   (0, 0)

y = | -2(1) |   c →     y = | -2 |     →     y =   2         ⇒   (1, 2)    

y = | -2(2) |     →     y = | - 4 |     →     y =   4         ⇒   (2, 4)