There are 30 people entered into a contest. How many ways can the contestants win first, second, third, and fourth place?​

5× 1/2 = ? a) more than 5 because you are multiplying by a whole number b) 5/10 because you multiply the numerator and denominator by 5 c) less than 5 because you are multiplying by a number that is more than 1 d) less than 5 because you are multiplying by a number that is less than 1

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Which expression is the factorization of x^2+10+21