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Picture a balanced scale on which are two different stacks of CDs symbolizing the collections of two individuals. On the left side of the scale, a tall stack of 30 CDs signifies Tom's collection. Right next to it is a rising arrow with monthly ticks indicating that the stack is growing by 1 CD every month. On the right side of the scale, a shorter stack of 18 CDs represents Nita's collection, with a more steeply rising arrow suggesting that it grows by 5 CDs each month. The scenario is set up to convey a growth comparison and the concept of reaching equilibrium.

Tom has a collection of 30 CDs, and Nita has a collection of 18 CDs. Tom is adding 1 CD per month to his collection, while Nita is adding 5 CDs per month to her collection. After how many months will Tom and Nita have the same number of CDs?

1 month
3 months
2 months*
33 months

The answer is 3 months

i got 3 months as well but it says i did it wrong.

I honestly did not understand the question so I came here so thanks for helping me.

2months

It's 3 months

So what should have been your correct answer ?

Your answer: 2 month

so Tom will have 30 + 2(1) = 32
Nita will have 18 + 2(5) = 28
Your answer is wrong.
Why did you not check to see if you were correct, where you just guessing?

Did you use
30+m = 18+5m ?