Tony needs 16 inch-long pieces of gold chain to make each of 3 necklaces. He has a piece of chain that is feet long. How much chain will he have left after making the necklaces?

On a string instrument, the length of a string varies inversely as the frequency of its vibrations. an 11-inch string has a frequency of 400 cylces per second. find the frequency of a 10-icnch string.

The estimated number of people to attend the last bengals game of the season was 2000. the actual number of fans attending was 1200. by what percent did the estimate differ from the actual?

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