Ifeel like it’s either answer 2 or 4. i just don’t understand the -9 part

n < 27

Step-by-step explanation:

let the number be n

the rocket cannot penetrate the ground, in a contextual sense, therefore the roots of this equation should be the domain of this function. i'll let you find the roots of this quadratic equation (hint: use the quadratic formula:  

1- c

2-a

step-by-step explanation:

mark brainliest!