Answer:
Step-by-step explanation:
<u>Equation for the Highland population</u>
<u>Equation for the Lowville population</u>
<u>Populations are equal after</u>
- 12200 + 300x = 21000 - 250x
- 300x + 250x = 21000 - 12200
- 550x = 8800
- x = 8800/550
- x = 16 years
60-75%= 45
So 60-45=15
15 people used credit cards
Answer:
2
Step-by-step explanation:
8 - 20 = -12
-2 - 4 = -6
-12/-6 = 2
Answer:
Step-by-step explanation:
hope this helps.
N^4 - 1 = (n^2 - 1)(n^2 + 1)
= (n + 1)(n - 1)(n^2 + 1)
