The sum of two numbers is 11. twice the greatwe number minus the lesser number is 7. what is the greater number?

It costs 4.25 for 1 pound of roast beef. how much will it cost to purchase 2.5 pounds of roast beef? round to nearest cent

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 - 4x - 5 = 0

Astraight water slide is 175 feet above ground and is 200 feet long. what is the angle of depression to the bottom of the slide?