exam Maths Puzzle Numerical Ability

Science and Nutrition. Ariana took 2 hours longer to drive 360 miles on the first day of a trip than she tood to drive 270 miles on the second day. If her speed was the same on bo

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8.64 Biting an unpopped kernel of popcorn hurts! As an experiment, a self-confessed connoisseur of
cheap popcorn carefully counted 773 kernels and put them in a popper. After popp I need to rewrite the expression with positive exponents.
1/2x^-2y^-3

Simplify the expression. The simplified expression should have no negative exponents.
(2x^3y^2/3xy)^-3

Please help!