Write a java progarm, rectanglearea, squarearea, and circlearea methods that calculate and print the area of a rectangle, a square, and a circle, respectively. these methods will have the following signature: public void rectanglearea(double h, double w) (h and w are the height and width of the rectangle, respectively) public void squarearea(double s) (s is the length of the side of the square) public void circlearea(double r) (r is the radius of the circle) in java netbeans.

Imagine that you have a friend who is starting a small business and is interested in using social media to spread the word. he is not certain that it is a good move, and has come to you for . would you advise him to use social media to advertise his business? why or why not? support you answer with information from the text.

Me with this program in c++ ! computers represent color by combining sub-colors red, green, and blue (rgb). each sub-color's value can range from 0 to 255. thus (255, 0, 0) is bright red. (130, 0, 130) is a medium purple. (0, 0, 0) is black, (255, 255, 255) is white, and (40, 40, 40) is a dark gray. (130, 50, 130) is a faded purple, due to the (50, 50, 50) gray part. (in other word, equal amounts of red, green, blue yield gray).given values for red, green, and blue, remove the gray part. ex: if the input is 130 50 130, the output is: 80 0 80. thus, find the smallest value, and then subtract it from all three values, thus removing the gray.

Plz ( which is an example of a good url?