Which conversion requires multiplication?
a. kilometers to millimeters
b. centimeters to kilometers
c. milligrams to dekagrams
d. decimeters to hectometers

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?

Write the point-slope form of the line passing through (2, -12) and parallel to y=3x.

The anwser cause i do not understand just plez