Answer: 18
Step-by-step explanation:
See the photo for work shown
Answer:
Real numbers are "closed" under multiplication
Irrational numbers are "not closed" under division
Integers are "closed" under subtraction
Positive ration numbers are "closed"
Hope this helps! :)
Y=2x+320
x being the number of years and 320 being the initial population of mice
Step-by-step explanation:

Answer:
3x-4y-9
Step-by-step explanation:
Combine like terms