PLEASE HELP. Quadratic Functions - Pre-Calculus 11.

I REALLY don't understand, so please TRY and answer with step-by-step.

Thanks, y'all are amazing!

PLEASE HELP Quadratic Functions PreCalculus 11 I REALLY dont understand so please TRY and answer with stepbystep Thanks yall are amazing class=

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Ans: The new price from each donut results in most revenue.

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