[17-9) × (×2)] ÷ 2 what is the value of this expression

What are the constants in this expression? -10.6+9/10+2/5m-2.4n+3m

Henry is an avid reader, he devours 90 pages in half an hour how many pages has henry read per minute?

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