Ball sprite won't bounce off rectangles. Need to know how to make rectangles disappear

Question

I have a ball sprite that is generated via generateSprite(); and also a platform sprite that is generated the same way. I need to make the ball bounce off the platform. This is a breakout style game so I have rectangles that are NOT sprites that the ball needs to hit, bounce off of and make them disappear. How would I do this?

To make the ball bounce off the platform this is what I tried:

 ballvx = 2;
    ballvy = 2;
    ballx += ballvx;
    bally += ballvy;
   if (ballx > platformx && ballx < platformx + 200 && bally > platformy) {
    if (bally < platformy + 20) {
      ballvy *= -1;
    } else {
      ballvx *= -1;
    }
  }
    if (ballx < 0 || ballx > width) {
      ballvx *= -1;
    }
    if (bally < 0 || bally > height) {
      state=LOSE;
    }

The problem here is that the ball simply goes straight through the platform instead of bouncing off of it.

For the rectangles I have no idea how to make them both disappear and have the ball bounce off them at the same time. Here is the code for the rectangles:

fill(r, g, b);
    rect(width*.01, height/28, w, h);
    fill(r, g, b);
    rect(width*.128, height/28, w, h);
    fill(r, g, b);
    rect(width*.25, height/28, w, h);
    fill(r, g, b);
    rect(width*.35, height/28, w, h);
    fill(r, g, b);
    rect(width*.45, height/28, w, h);
    fill(r, g, b);
    rect(width*.55, height/28, w, h);
    fill(r, g, b);
    rect(width*.65, height/28, w, h);
    fill(r, g, b);
    rect(width*.75, height/28, w, h);
    fill(r, g, b);
    rect(width*.85, height/28, w, h);
    fill(r, g, b);
    rect(width*.95, height/28, w, h);
    fill(r, g, b);
    rect(width*.01, height/4, w, h);
    fill(r, g, b);
    rect(width*.128, height/4, w, h);
    fill(r, g, b);
    rect(width*.25, height/4, w, h);
    fill(r, g, b);
    rect(width*.35, height/4, w, h);
    fill(r, g, b);
    rect(width*.45, height/4, w, h);
    fill(r, g, b);
    rect(width*.55, height/4, w, h);
    fill(r, g, b);
    rect(width*.65, height/4, w, h);
    fill(r, g, b);
    rect(width*.75, height/4, w, h);
    fill(r, g, b);
    rect(width*.85, height/4, w, h);
    fill(r, g, b);
    rect(width*.95, height/4, w, h);