Steve has 8 Orange marbles and 4 purple marbles in a jar. He draws two marbles from the jar without replacing the first marble.
What is the probability of the orange marble and a purple marble on his second draw

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