Answer:
2
Step-by-step explanation:
The pack of pens that has 12, is you bought 120 pens the total would be $90 but with the other pack it would cost $93.60
hope this helps!
"A scale factor is a number which scales, or multiplies, some quantity. ... In the field of measurements, the scale factor of an instrument is sometimes referred to as sensitivity. The ratio of any two corresponding lengths in two similar geometric figures is also called a scale factor." (not my wording but i hope this helps)
