This hyperbola is centered at the origin. Find it's equation. Foci: (0,-9) and (0,9) Vertices: (0,-7) and (0,7)

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.

Write a fraction less than 1, which has a denominator of 6 and is greater than 3/4 plz answer !

What is the range of the function? f(x)=-2|x+1|? a. all real numbers. b. all real numbers less than or equal to 0. c. all real numbers less than or equal to 1. d. all real numbers greater than or equal to 1