If you cut all 3 half-yard pieces and the fat quarter into 5" squares for your D9P you will have AT MOST 24 squares from each 1/2 yard and 15 from the FQ, so 87 squares total. You can only make nine 9-patch blocks with that, with a few squares left over from the FQ. Each 9-patch will measure 14" unfinished, 13.5" finished, and you'll lose half an inch (if I remember correctly) when you make the D9P, so say 13" finished, 3x3 blocks, you have enough for a lap quilt that is 39x39. I suppose that's big enough for some purposes, not for others. But if that's what they gave you, that's probably what they expect. You will have extra fabric from the back, but you will need to piece it. There will be plenty for a binding. It seems to me that they were a little stingy with the fabric for the top.