If a sample of 18 metal marbles has a total volume of 21.0 ml and a total mass of 20.7 grams, what is the density of the metal marbles?

7(x - 2) = 3(x + 4) solve the following equation. then enter your answer in the space provided using mixed number format.

Adaycare center charges a $75 enrollment fee plus $100 per week. which of the following represents the cost of sending a child to daycare for 14 weeks?

Fill in the blank 1. a rhombus is a rectangle a) always b) sometimes c) never 2. a square is a quadrilateral a) always b) sometimes c) never 3. a trapezoid is a kite a) always b) sometimes c) never 4. a quadrilateral is a kite a) always b) sometimes c) never 5. a square is a rhombus a) always b) sometimes c) never 6. a parallelogram is a rectangle a) always b) sometimes c) never