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You have to buy 100 animals with $100.00. Dogs-$10, Cats-$3, Mice-$.50 The total of animals have to equal 100, and the total of dollars have to equal $100.

A grocer bought 12 bushels of Baldwin and McInotosh apples: Baldwins costs 95 cents a bushel, but McIntoshes cost only 90 cents a bushel. If he paid $11.00 for the lot, how many bushels of each kind did he get?

A rocket is shot from the top of an oceanside cliff that is 60ft high. The original angle is 45 degrees and the original velocity is 50ft per sec. The formula for the rocket's motion is: y = f(x) = -0.0128x(squared) + x + 60 The variables x and y are both measured in...