3 students are 15% of what

At the newest animated movie, for every 9 children, there are 4 adults. there are a total of 39 children and adults at the movie.

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

Find the zeros of each function. f(x) = x^2 + 5x - 6