HELP ME PLEASE

The profit( in thousands ) that a company makes, t years after opening, can be found by: F(t) = 2t^2 - 6t -3
a) How many years after opening did the company’s profit switch from negative to positive? ( round to the nearest tenth)
b) How many years after opening was the company’s profit the lowest?
c) What was the company’s profit( in thousands of dollars) when it was the lowest? ( don’t use dollar signs in your answer)

The profit( in thousands ) that a company makes, t years after opening, can be found by: F(t) = 2t^2 - 6t -3
a) How many years after opening did the company’s profit switch from negative to positive? ( round to the nearest tenth)
b) How many years after opening was the company’s profit the lowest?
c) What was the company’s profit( in thousands of dollars) when it was the lowest? ( don’t use dollar signs in your answer)

A bottle rocket is launched from a platform. The function h(t) = 2+90t-16t^2 models the height ( in feet ) after t seconds.

a) What is the maximum height the rocket reaches?

b) How many seconds does it take to reach the maximum height?

32)A bottle rocket is launched from a plate form. The function h(t) = 2+90t-16t^2 models the height(in feet) after t seconds. What is the height of the platform? (Hint: Think starting height)

33) The profit(in thousands) that a company makes, t years after opening, can be found by: F(t) = 2t^2 - 6t - 3. How many thousands of dollars did the company have when it opened? ( Make sure your answer is in thousands) ( don’t use $ signs in your answer)