[racket] Finding out values

(cond   [(<= (string-length s) 5) 10]   [(string=? s “hello”) 50]   [(string=? (substring s 1 4) “ell”) 25]   [else 130]) new to racket. im trying to find out what would ii get as a value if I replace the s with “hello”  its easier to do this with numbers where you would define s and give it a

[racket] Question about images in racket

I am trying to draw a small house in Racket. It draws a house frm a triangle, square, and rectangle. So it consumes a number and draws the shapes, places, them, and forms a neat house.  This is what I have so far (overlay/align "center" "bottom"                                     (triangle 40