a customer paid 9x + 11y dollars for a bag that contains x pounds of chocolate and y pounds of almonds. Which statements about the expression are true? PLEASE!!

Question 5 spring semester final exam math evaluate

Evaluate cos2θ for cosθ = square root of 3/2

The point of intersection of the diagonals of a rectangle is 4 cm further away from the smaller side then from the larger side of the rectangle. the perimeter of the rectangle is equal to 56 cm. find the lengths of the sides of the rectangle. 16 points answer quick