In your marble collection 4/7 if the marbles are blue and 4/21 marbles are red how many more blue marbles than red marbles?

What value of x will make the triangles similar by the sss similarity theorem?

Don't know how to find x given these segment lengths

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.