Question in Comments.
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Question

Question in Comments.
Thanks.
♥

sissyedgar · Answer

@mathmate

sissyedgar · Answer

@AloneS

sooobored · Answer

exponential
x^n type of relation

sooobored · Answer

if it helps, think of it like a geometric sequence

sissyedgar · Answer

...Sorry I don't think I'e learned about whatever that is yet.....

sissyedgar · Answer

@3mar

sooobored · Answer

does this look familar

$$B_n= B_0 *x^n$$n
where Bn is the total number of books at nth month
and n is the month

sissyedgar · Answer

All I know is that I think the formula is.... $$A=Pe ^{rt}$$

3mar · Answer

You are welcome!
I will not be late for any help.

Not because I don't prefer you picture I will not help you. Absolutely not!
That is not my own business, but it is yours. I was just saying a word of advice to my sister, take it or leave it!

sooobored · Answer

oh... you use e^rt
that makes it slightly harder

but essentially, find r with the given information

sooobored · Answer

we look at the initial month, which we consider as t=0 and A= 80
we can get P

sooobored · Answer

we look at the first month, t=1 and A=100
since we know P now
we can determine r

sooobored · Answer

then you should have your exponential equation

3mar · Answer

$$\Huge\color{Chocolate }{A=Pe ^{rt}}$$
You can use the first point (0,80) to get the value of $P$
Can you share your works/steps, please?

3mar · Answer

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