Omar ordered his sister a birthday card for a company that randomly selects a card for their inventory then company has 21 total cars in inventory 14 of those cards or birthday cards what is the probability of not getting a birthday card

The manufacturer of a new product developed the following expression to predict the monthly profit, in thousands of dollars, from sales of the productwhen it is sold at a unit price of x dollars.-0.5x^2 + 22x - 224what is represented by the zero(s) of the expression? a.the profit when the unit price is equal to 0b.the unit price(s) when the profit is equal to 0c.the profit when the unit price is greatestd.the unit price(s) when profit is greatest

This is so hard and it’s for a test

Ijust need these 2 questions answered (the second pic is just confirmation i'm not confident in that answer)