Arectangle's length is 11 inches greater than its width. if the perimeter of the rectangle is 42 inches, find the length. (all answers are given in inches.)

If the scale factor between two circles is 2x/5y what is the ratio of their areas?

Use the method of cylindrical shells to find the volume v generated by rotating the region bounded by the curves about the given axis.y = 7ex, y = 7e^-x, x = 1; about the y-axis

286 divided by 457.6 what is the quotient?