Simplify (9x-1)^-1/2 - (x+2)(9x-1)^-1/2

If 1 is divided by the sum of y& 4. the result is equal to 3 divided by 4 .find the value of m?

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.

What is the y-intercept of the line given by the equation