truffles cost $11.02 per pound, heart candies cost $6.39 per pound, and Valentine cookies cost $3.99 per pound. How much will three pounds of truffles and five pounds of valentine cookies cost?

What is the value of x? enter your answer in the box. (cm)

Quadrilateral abcd in the figure below represents a scaled-down model of a walkway around a historic site. quadrilateral efgh represents the actual walkway. abcd is similar to efgh. what is the total length, in feet of the actual walkway?

Factor the polynomial 4x4 – 20x2 – 3x2 + 15 by grouping. what is the resulting expression? (4x2 + 3)(x2 – 5) (4x2 – 3)(x2 – 5) (4x2 – 5)(x2 + 3) (4x2 + 5)(x2 – 3)