# Increases 5807

7.18% of the wood mass increases in the forest every year. How many years will the timber double with a steady annual increase?

## Correct answer:

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#### You need to know the following knowledge to solve this word math problem:

**algebra**- equation
- exponential equation
- expression of a variable from the formula
**arithmetic**- rounding
**basic functions**- percentages
- exponential function

#### Units of physical quantities:

#### Grade of the word problem:

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