Lcm of the set of polynomials 16ab^3, 5b^2a^2, 20ac

Describe the relationship between the angles of similar triangles and the sides of similar triangles

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.

Find the domain of the following expression: 1/(√x)-2