exam Maths Puzzle Numerical Ability

Using the formula I=PRT to find simple interest on an account, find the ammount earned in 3 years if you deposited $500 into a saving account earning 6% per year.

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exam Other Question

Consider x-8/x+5 divided by x-9/x+4.Explain why -5,9 and -4 are not allowable replacements for the varialbe x. I would appreciate help with this problem. Thank you!
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