Answers for "using html and css, show how you would create an image that would display another image"

add image to css

background-image: url(path);
background-repeat: no-repeat;
width: 10px;
height: 20px;

how to add images on images css

.parent {
  position: relative;
  top: 0;
  left: 0;
}
.image1 {
  position: relative;
  top: 0;
  left: 0;
  border: 1px red solid;
}
.image2 {
  position: absolute;
  top: 30px;
  left: 30px;
  border: 1px green solid;
}