Nancy and lisa played 20 sets of tennis. nancy won 12 of them. write the ratio of nancy's wins to the total number of sets in simplest form

Rewrite the equation in the form y = k/x xy = - 45 x = 15/y 2xy=9 what are the answers and how do i solve them?

Solve for x - x+1.75=7.14

The measure of an obtuse angle is given as (3x-42). What inequality describes all the possible values if x for the angel

Write 0.126126126 ... as a fraction

Max observes the zoo and the library from a helicopter flying at a height of 200 times square root of 3 feet above the ground, as shown below: A helicopter is flying at a height of 200 multiplied by square root of 3 feet above the ground.

3 (6x^2-5x+7) - 2 (-4x^2+8-10)

A model ship is built to a scale of 1 centimeter: 5 meters

Simply: x^3 y^3 / x^3 y^2 (the arrows mean to the power of the number)

A costumer is buying 3dvds that cost $6.55 each, with an additional 8% sales tax. What is the total amount that the costumer pays, rounded up to the nearest cent

One of Edna's grandchildren, Toby, plans to spend 4 years in college. The university awards him a scholarship to cover his tuition, but he will need an additional $8,000 for other expenses over the four years.