Add the following polynomials, then place the answer in the proper location on the grid. Write answer in descending powers of x.
2x ^3 + 4x - 6
3x^3-8x+7

answer:   b

step-by-step explanation:

x2 = 16

x can not be a negative number because 16 is positive

the only answer would be positive 8  

the answer is d

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multiply each one by 3.14

step-by-step explanation:

step-by-step explanation:

gym b charges $1.05 less per hour than gym a.