+80 The volume of a cone is given by the formula \(V = \frac{1}{3}Bh\), where B is the area of the base and h is the height. The area of the base of a cone is 30 square units, and its height is 6.5 units. What is the number of cubic units in its volume?
What is the value of \(1-2x+3x^2-4+5x-6x^2+7-8x+9x^2\) in terms of x? Express your answer in the form \(ax^2\)+bx+c, where a, b, and c are numbers.
