Which ordered pair is a solution of the equation?−x−4y=−10−x−4y=−10

Find the value of the cosine for angle a

Which statement most accurately describe why the division property of exponents does not apply to the expression (-8)^2/(-3)^4

Jackie purchased 3 bottles of water and 2 cups of coffee for the family for $7.35. ryan bought 4 bottles of water and 1 cup of coffee for his family for 7.15. how much does each bottle of water cost? how much does each cup of coffee cost?