For the first one, we know that the scale is 1 to 60. This means that we’d multiply 2.75 by 60. This is = to 165 inches, or 13.75 feet.
For #2, if Andres scale is 1/12th of the side of the courtyard instead of 1/60th, then the scale would be bigger (because 1/12 is larger than 1/60) :)