book Maths Puzzle Numerical Ability

CHUCK INVESTED $14000 LAST YEAR. HE INVESTED 9% IN A SIMPLE INTEREST, AND THE REST OF IT AT A 10%. THEN MADE A TOTAL OF $1350 FROM INTEREST. HOW MUCH WOULD HAVE BEEN INESTED AT EACH RATE? WOULD ENJOY ANY HELP GIVEN. KEVIN

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book Other Question

Rationalize the denominator of each radical expression. Assume all variables represent nonnegative numbers and that no denominitors are 0.

1 + Square root 3
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3 Square root of 5 + 2 Square Root 3 How do I find the volume of a cone that has a circumfrence at the base of 100 feet and its height is 14 feet high.