Hilary has $9 less than barbara. together they have $21. if x represents barbra's money, which of the following expresses this relationship

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.

Aregular pan has a length that is 4/3 the width. the total area of the pan is 432in.2. what is the width of the cake pan?

In the diagram, gef and hef are congruent. what is the value of x