Suppose I invest $400 in an account that pays 3% interest annually. How much will I have in the account after 2 years, assuming
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<h2>Answer:</h2>
This is easy. All you need to do is set up a <u><em>proportional relationship</em></u>.
A proportional relationship uses variables to show similarities, in this case, in triangles.
<u><em>x</em></u> represents the missing side.