PLEASE ANSWER THIS QUESTION I GIVE YOU 30 POINTS AND WRITE ANSWER IN COPY AND SEND ME

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

The cost of using a service is $0.25 per min. what equation correctly represents the total cost c, in dollars, for d days of use?

The sum of the squares of two numbers is 8 . the product of the two numbers is 4. find the numbers.