Equation by elimination

-4x-9y=20

-2x-9y=-24

What is 49/8 as in improper fraction

What is the likelihood for the Fourth of July being on a Sunday? Use probability to explain your answer.

What is half of 27 because i dont know how to do this

What are all the factors of 2x^2-6x

Candace bought three shirts each cost the same amount and discounted by three dollars and 66 cent Candace paid a total of 62.31 before tax. how much did each shirt cost before the discount?

The function for the cost of materials to make a biscuit is f (x) = four-fifths x + 4, where x is the number of biscuits. The function for the selling price of those biscuits is g (f (x)), where g (x) = 4x + 5. Find the selling price of 15 biscuits.

Lori needs at least 12 liters of water to fill a water cooler. She has a container with 4.55 liters of water, a container with 3.25 liters of water, and a container with 4.85 liters of water. Does she have enough water? Use estimation only to decide.

What improper fractions are equal to 8?

Find: (4x2y3 + 2xy2 - 2y) - (-7x2y3 + 6xy2 - 2y) Place the correct coefficients in the difference.

Lesson 3.2 percent increase and decrease