Four less than the square of a number is 0

The hawaiian alphabet has 12 letters. how many permutations are posible for each number of letters?

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Val and tony get paid per project. val is paid a project fee of $44 plus $12 per hour. tony is paid a project fee of $35 plus $15 per hour. write an expression to represent how much a company will pay to hire both to work the same number of hours on a project.