What is the common difference between the terms in the following sequence?

{17,11,5,−1,−7...}

Write an explicit formula that represents the sequence defined by the following recursive formula:

Janie has $3. she earns $1.20 for each chore she does and can do fractions of chores. she wants to earn enough money to buy a cd for $13.50. write an inequality to determine the number of chores, c, janie could do to have enough money to buy the cd.

What is the measure of one interior angle of a pentagon