Overclocked Game Design is developing a new video game and wants to determine how large the rectangular map that constitutes the game world will be. They want the width of the map to be x miles and the length to be x+4 miles. Write an equation to represent the area A of the map. - Select the equation that represents the area of the map in terms of x.
A)
A=x2

B)
A=2x+4

C)
A=4x2

D)
A=x(x+4)