If the Math Olympiad Club consists of 15 students, how many different teams of 3 students can be formed for competitions?

F(n + 1) = f(n) – 8. if f(1) = 100, what is f(6)?

Find the area of an equilateral triangle with a side of 6 inches

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