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Bobby bought 1.12 pounds of turkey at a cost of 2.50 per pound. carla bought 1.4 pounds of turkey at a cost of 2.20 per pound. who spent more and by much?

Which expression do you get when you eliminate the negative exponents of 4a^2 b^216a^-3 b

Angles r and s are complementary. the measure of angle r is 31 degrees. which equation can be used to find angle s?