(5m^3mn^2)+(-7m^2n+n+mn^2-n^3)-(mn^ 2+2m^3)

Alicense plate is to consist of 44 digits followed by 55 uppercase letters. determine the number of different license plates possible if the first and second digits must be? odd, and repetition is not permitted.

Solve the system of equations. y= 2x y= x^2 - 15

Candy lives in the center of town. her friend darlene lives 28 miles to the east and her friend dana lives 21 miles north. approximately how far do dana and darline live apart ?