Answer:
- 2x + 4 = 36
- 2x = 36-4
- 2x = 32
- x = 32/2
- x = 16
Step-by-step explanation:
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Answer:

Step-by-step explanation:
We can write this rate as an ordinary differential equation.

Where a is proportional constant, P the population variable, and t the time.

Integrating each side of the equation.



To find C we need to use the initial condiction, it means evaluae P at t=0.


Now, we use the sentence the population has doubled in 5 years.

We can find "a" in this condition.




Finally, let's find how long will it take to triple.




I hope it helps you!
Plan 1 because she spends 435.88 more if she goes with plan 2
Not sure sorry but you can. Try searching on google or yahoo answers