which proof has a flaw? ( i need help in my geometry class, and will give brainliest answer if is correct!!) please help :)

Write the following as a base and exponent

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.

Simplify. (-2)^-3 a. -8 b. -1/8 c. 1/8 d. 8