Answer:
3,6,9,12 is not geometric seuence
Step-by-step explanation:
Every time you play a song 8 different songs can be played, since you do this 3 times:

Or, an easier way to write this if play them many times:

In which the 8 is how many options and the 3 how many times you play.
Answer: y=6, x=2
Step-by-step explanation:
Substitute x=12-y/3
Isolate y, then you get 6 is y
x=12-3/3
x=2
Answer:
168
Step-by-step explanation:
length divided by width is 168