7. Numbers Quiz

1. Make a function that picks a color that has a random amount of red, either 50, 150, 250, and a random amount of green, either 100 or 200. Use it to make six 50x50 squares next to each other.

2. Check if a random integer between 0 and 60 (inclusive) has a square root between 3.5 and 7.5. Use check-within. You can comment out your test when you know it works.

3. Make a gradient from maroon to olive that takes 500 pixels to go all of the way (so it doesn’t get to olive before the end).

4. (pinkify) Write a function that takes in an image and removes some green from it according to the directions below:

   • The center of the color change is (100,120).
   • Green within 10 pixels of (100,120) should be untouched.
   • As you get further away, the green should fade to black, so at (365,120) there is 0 green left.
   • There should be some small amount of green left until you get all of the way to (365,120), although you will probably not be able to see it.

Make sure to include check-expects that demonstrate that green is untouched in the center area and gone on the edge.