Dale has a special deck of cards. each card has a different rational number on it. the cards are .25, 4/5, 2/9, 0.48 and 8/11. how many cards have a value that is greater than 1/2?

1. are the triangles similar and if so why? what is the value of x? show your work.

Solve the given system of equations. 2y= -x+9 , 3x-6= -15

Aman is 6 feet 3 inches tall. the top of his shadow touches a fire hydrant that is 13 feet 6 inches away. what is the angle of elevation from the base of the fire hydrant to the top of the man's head?