Help me with this pls lol

The triangles are similar. what is the value of x? x=

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.

:24% of students in a class are girls. if there are less than 30 students in this class, how many students are there? how many girls are there?