In how many ways can you arrange 9 performers in a row on the stage?

a. 81 ways
b. 45 ways
c. 362,880 ways
d. 40,320 ways

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Can you draw an isosceles triangle with only one 80 degree angle?

Its due ! write an equation in which the quadratic expression 2x^2-2x 12 equals 0. show the expression in factored form and explain what your solutions mean for the equation. show your work.

Can somebody me out with this question