If (9x − 4)(9x + 4) = ax^2 − b, what is the value of a?

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

Which geometric principle is used to justify the construction below?

If the probability of an event happening is 65% then the probability this event does not occur?