Prove that the diagonals of a parallelogram bisect each other.
The midpoint of AC is
A. (a+2b, c)
B.(a+b/2, c/2)
C.(2a+2b,2c)
D.(a+b, c)

The revenue each season from tickets at the theme park is represented by t(c)=5x. the cost to pay the employees each season is represented by r(x)=(1.5)^x. examine the graph of the combined function for total profit and estimate the profit after four seasons