What is the product of 9a + 4 and 6a -5

I'll give brainliest if you answer right : )

What is the equation of a vertical line passing through the point (−5, −1)? y = −5 y = −1 x = −5 x = −1

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