Redo Patterns quiz

What is the pattern in the sequence? $3,\ 9,\ 27,\ 81...$  

• x2

• x3

• +12

• -12

What term could come BEFORE the first term? $16,\ 32,\ 64...$  

• 5

• 6

• 7

• 8

What is the missing term in the sequence?

5, __, 15, 20

• 3

• 4

• 5

• 6