12. This bar graph describes the number of slices of pizza these five friends ate this week. Determine the mean, median, and mode.
Mean =
Median =
Mode -
Sarah
Jack
Lisa
Dave
Kelly

no clue

Step-by-step explanation:

the answer is ! ?

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!