Which number supports the given conjecture?
if the sum of the digits of a number is divisible by 9, then the number is also divisible by 9.

a.19

b.54

c.87

d.109

f(2x−x2)=−3x2+6x−1

step-by-step explanation:

set up the composite function and evaluate.

f(2x−x2)=−3x2+6x−1

80x^8−68x^6+16^5−20x^4−4x^3+8x^2

hope i'm right lol

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