Not sure how to due this problem.

a vehicle factory manufactures cars. the unit cost (the cost in dollars to make each car) depends on the number of cars made. if x cars are made, then the unit cost is given by the function c (x) = x^2 - 320x + 40,052 . what is the minimum unit cost? do not round your answer.

Solve the equation using the given values: x= -2.5; y= -7.51. 2xy + 2x²

Acircle has a circumference of 2 pi cm. which statement about the circumference and area is true? a comparison of the area and circumference is not possible since the area cannot be determined. the numerical values of the circumference and area of the circle are equal. the numerical value of the circumference is greater than the numerical value of the area. the numerical value of the circumference is less than the numerical value of the area.

Graph the system of equations on your graph paper to answer the question. {y=−x+4y=x−2 what is the solution for the system of equations? enter your answer in the boxes.