2. 1.Start with the number of sides in a pentagon. 2.Add the number of sides in a triangle. 3.Divide by the number of sides in an octagon. 4.Multiply by the number of diagonals in a rectangle. 5.Add the minimum number of points needed to determine a line. 6.Add the square of the number of angles in a parallelogram. 7.Divide by the square root of the number of sides in a trapezoid. Mentally:

3. Start with the number of sides in a pentagon. 5 Add the number of sides in a triangle. 5 + 3 =8 Divide by the number of sides in an octagon. 8/8 =1 Multiply by the number of diagonals in a rectangle 1 * 2 =2 Add the minimum number of points needed to determine a line. 2 + 2 =4 Add the square of the number of angles in a parallelogram 4 + 4 2 =20 Divide by the square root of the number of sides in a trapezoid 20/2 = 10

4. 1.Consider y = 6x + 12. 2.Write down the y-intercept. 3.Add the slope of the line. 4.Divide that by the x-intercept. 5.Add the value of y when x = ½. 6.Add the value of x when y is 6. 7.Multiply that by the square of the zero of the function. Using Pencil and Paper:

5. Consider y = 6x + 12 Write down the y-intercept.12 Add the slope of the line.12 + 6 = 18 Divide that by the x-intercept.18/-2 = -9 Add the value of y when x = ½.-9 +15 = 6 Add the value of x when y is 6.6 + -1 = 5 Multiply that by the square of the zero of the function. 5 * 4 = 20

6. 1.Write down the tan 45°. 2.Divide that by the sin 30°. 3.Cube this value. 4.Multiply that result by cos 120°. 5.Add the sin 270°. 6.Multiply by cos 180°. 7.Multiply by 5π/4. 8.Call that result “x” and find tan(x).