A study of air quality in Metro City suggests that tt years from now the level of carbon monoxide, in parts per million, in the air can be found with P(t)=0.2t^{2}+0.01t+5.1 What is the level, in parts per million, now?

Multiply and simplify. (x - 4) (x^2 – 5x – 6) i will mark brainliest if your answer is right. show how you got the answer. if your answer is correct but does not show how you got the answer you will not be marked brainliest.