Vita wants to Buy a new dress that costs $89.00 she has a coupon for 20% off. which expression could be used to find the final cost of the dress? a) 89-20

b) 89+20

c) 89-20 (89)

d) 89-0.20 (89)​

f(2x−x2)=−3x2+6x−1

step-by-step explanation:

set up the composite function and evaluate.

f(2x−x2)=−3x2+6x−1

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step-by-step explanation:

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