richard predicted that the number of Mango tree x, planted in a farm could yieli y=-20x²+2800x mangoes per year. How many trees should be planted to produce the maximum number of Mango per year?​

Aschool puts on a play. the play costs $1,200 in expenses. the students charge $4.00 for tickets. there will be one performance of the play in an auditorium that seats 500 people. what is the domain of the function that shows the profit as a function of the number of tickets sold?  

Atriangle with all sides of equal length is a/an triangle. a. right b. scalene c. equilateral d. isosceles

Complete the solution of the equation. find the value of y when x equals to 1 9x-5y=29