Danna's age is 6 years less than 8 times Tessa's age. If Tessa's age is x years, which expression best shows Danna's age?

A. 2x

B. x - 2

C. 6x - 8

D. 8x - 6

Find the value of this expression is x=-6. X2/x+3

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How do you solve ... 3c^3d/9cd^-1