Describe the difference in the resulting image when a scale factor is less than one versus a scale factor that is greater than one

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 adds to be the bottom number but also multiplies to be the top number with 8 on the bottom and 15 on top

What ia the sum if the first 7 terms of the geometric series