Help me with this question please.

Answer:
Essence is 140 flyers per hour
Raizon is 80 flyers per hour
Step-by-step explanation:
In essence (if you see what I did there) a unit rate (strictly in this context) is how much work is done for 1 hour of time. To find this, we simply divide the number of flyers by the number of hours of worked.
So, for Essence:
[tex]\frac{420}{3} = 140[/tex]
The units for this problem will be flyers per hour. So, Essence has a unit rate of 140 flyers per hour.
For Raizon:
[tex]\frac{640}{8} = 80[/tex]
Raizon has a unit rate of 80 flyers per hour.