Which table shows the correct values of time and earnings for a student earning $6.50 per hour working in a library?

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!

b and c

step-by-step explanation:

faster, im not sure why but i know it is faster