Two sides of an isosceles triangle measure 6 and 10 the perimeter of the triangle could be
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the barter

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.

the answer is 99.