75/135 and 18/135
just times 9 and 15, 9 and 2, and then 15 and 5
F(x) = |2x-1|-5
f(x) = |2*(x)-1|-5
f(-3) = |2*(-3)-1|-5 ... replace every x with -3
f(-3) = |-6-1|-5
f(-3) = |-7|-5
f(-3) = 7-5
f(-3) = 2 which is the final answer
Side Note: the vertical bars mean "absolute value" which represents distance. Negative distance makes no sense which is why absolute value results are never negative.
Order : 6 9 9 10 12 15 15 17 18
Mean: 12.33
Median: 12
mode: 9 and 15
range: 12