book Maths Puzzle Numerical Ability

One positive number is 8 more than another. The sum of their squares is 130. Find both numbers.

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book Other Question

Find the greatest common factor for the following term:

12a^3b^2, 18a^2b^3, 6a^4b^4
$65.00 was the quoted price on a yard of cement, but the actual price was $74.40 which included 6% sales tax. What was the percent of increase from the actual price and the quoted