To solve an equation, we perform the inverse operation. What does inverse mean?

What is the volume of the sphere shown below with a radius of 3?

John bought 2 horses at rs 20000 each

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.