I used the "Constraint in rows" method, so that's why I used the Cross Tab tool to put the fields in order.
I had to sort the rest of the dataset so the field would match correctly (Cross Tab Tool makes it messy).
The other difference is that I used "==" as my operator, instead of "<=". This is questionable because the exercise says that the florist has a budget of $950. So i think both answers would be right, although the solution provided ends up spending $949.90, mine had an extra cost but it entered the budget.