Hi Lania!
If Koby can work 22 math problems in 30 minutes, then he can work 44 in an hour (multiply your problems completed and time elapsed by 2).
Now, we have to figure out how many he can complete in 3 hours, so all we have to do is multiply our current math problems by 3.
44 * 3 = 132
This means that Koby can complete D.) 132 math problems in 3 hours.
I hope this helps!
Answer:

Step-by-step explanation:
Have a nice day
Answer:
they were each far far away from each other
Step-by-step explanation:
Answer:
8.1146
Step-by-step explanation:
easy :)
Answer:
20+4+0.02
Step-by-step explanation:
- You break down each number
- <em>Then you need to "add" them </em>
- <em>Then finally you add them together to make sure you have the right answer</em>