The profit y from selling x units of a product is given by y= -.0002x^2+60x. How many units must be sold in order to have the greatest profit? Pls help me!

What is the area of the trapezoid shown ?

Angle xyz is formed by segments xy and yz on the coordinate grid below: a coordinate plane is shown. angle xyz has endpoints at 3 comma negative 1 and 6 negative 2 and 3 comma negative 3 and measures 36.87 degrees. angle xyz is rotated 270 degrees counterclockwise about the origin to form angle x′y′z′. which statement shows the measure of angle x′y′z′?

A. what does the point (4, 122) represent? b. what is the unit rate? c. what is the cost of buying 10 tickets?