Models for two mixed numbers are shown below. Which equation shows the sum.

help me pls

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.

Solve 4 ln x=2ln25 a) x=5 b) x=25 c) x=625

Need plz been trying to do it for a long time and still haven’t succeeded