A license plate begins with three letters. If the possible letters are A, B, C, D, and E, how many different plates with these letters can be made if no letter is
used more than once?

What is the point-slope equation of a line with slope -5 that contains the point (6,3)

The volume of gas a balloon can hold varies directly as the cube of its radius. imagine a balloon with a radius of 3 inches can hold 81 cubic inches of gas. how many cubic inches of gas must be released to reduce the radius down to 2 inches?

Find the area of the triangle formed by the origin and the points of intersection of parabolas y=−3x^2+20 and y=x^2−16.