Which of the following is equivalent to 36^-1/2

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.

Is there an x intercept in the equation 60*1.15^x

Find the average rate of change for the given function drom x=1 to x=2