Sarah loaded 4 trucks in 15 minutes. At that rate, how many trucks would she load in 5 hours?

the answer is 62.8 cubic units

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!