Max throws a rock over a wall into the ocean. The height of the rock can be modeled using the function f(t) = -3t2 + 12t+5, where t represents the time in seconds
after the rock is released. After how many seconds will the rock be at its maximum
height?

7. show all work to identify the discontinuity and zero of the function f of x equals 5 x over quantity x squared minus 25. 8. the aquarium has 6 fewer yellow fish than green fish. 40 percent of the fish are yellow. how many green fish are in the aquarium? show your work.