Question

all you need is on the photo I really needed heeeeelp

Answer 1

For row 1;

The price that gives a profit of zero dollars is

$P(p)=-2p^2+24p-54$

For row 2,

The profit when the price is zero is

$P(p)=-2(p-3)(p-9)$

For row 3,

price that gives the maximum profit is

$P(p)=-2(p-6)^2+18$