If 2/3 out of 3/3 of the pie is eaten what fraction remains

The number of fish in a lake can be modeled by the exponential regression equation y=14.08 x 2.08^x where x represents the year

What are the solutions of the equation? 5z^2 + 9z - 2 = 0 a. 1, -2 b. 1, 2 c. 1/5, -2 d. 1/5, 2

Which is greater, 7 p 5 or 7 c 5? 7p5 7c5