Need math help asap for test!! How many permutations can be made from the letters in the word
chosen?

Offering 30 if a plus b plus c equals 68 and ab plus bc plus ca equals 1121, where a, b, and c are all prime numbers, find the value of abc. the answer is 1978 but i need an explanation on how to get that.

Write the pair of fractions as a pair of fractions with a common denominator

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