Miles broke his piggy bank with a hammer and found that it contained quarters and pennies. If he had a total of 120 coins for a combined value of $16.32, How many pennies did he have on his bank?

d. 8

step-by-step explanation:

the given radical expression is:

we can rewrite this as:

we express as square numbers to get;

the exponents will now cancel out to give.

the correct answer is d

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