Ahuman factors expert recommends that there be at least 9 square feet of floor space in a college classroom for every student in the class. find the minimum floor space that 66 students require

30005

yes ok                                            

or

step-by-step explanation:

we need to solve for 'x' the following equation:  

we have that:

⇒

⇒ ⇒

factorizing, we get that:

  ⇒

then, the solutions are: or

nothing extraneous has been found!