Find the next two terms in the sequence 1/3, 1/9,1/27,1/81

On their way home from school. terri and evie started walking out for two blocks and then running for three blocks and then repeating that pattern. if they can walk a block in 2 minutes and run a block and 45 seconds how long will it take them to go 18 blocks?

Find the third,fifth and seventh term sequence described by each rule a(n)=n+1

Consider the proof. given: segment ab is parallel to line de. prove: what is the missing statement in step 5?