A boy talks 18 minutes to walk to school at 5mph. How long would he tale if cycled at 15mph?
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If g^-1(x) is the inverse of g (x) which statement must be true

How can constraints be used to model a real-world situation?

The ideal weight of a nickel is 0.176 ounce. to check that there are 40 nickels in a roll, a bank weighs the roll and allows for an error of 0.015 ounce in total weight