How do you subtract decimals and whole numbers again? My brain just fell asleep XD. Do you put the whole number before the decimal point, or do you ignore the decimal point completely? The equation is 18.5 - 16 if it helps you understand the question.

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!

b). 4320 have a nice day