The coast of one orange r, and three apples, a, is $7. three oranges and three apples cost $9. what is the cost of one apple ? what is the cost of one orange ?

What is the area of triangle abc if a = 8, b = 11, and c = 15?

Two rectangular prisms have the same volume. the area of the base of the blue prism is 418 4 1 8 square units. the area of the base of the red prism is one-half that of the blue prism. which statement is true?

Solve for x where 0 equation: cot^2x+2cotx+1=0