I'm sorry i keep asking all of you guys these questions i am not good at all when it comes to math

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.

Which of the following is an example of a rational number? a. π b. √ 9 c. √ 8 d. 3.8362319

There are 93 calories in a small candy bar how many calories are ther in a half dozen small candy bars?