Marla finally made it over to Delphine's house while Delphine was still awake, and finished the opportunity. (She had to convince Delphine that logic was useful, which took about two seconds, and didn't result in a cash reward. Oh well.)
Delphine has the ugliest. Kitchen. Ever.
Back at home, Marla had a big promotion! Now she can eat meals while sitting on the edge of her very own bathtub! No more sitting on the toilet to eat dinner!
Between the leftovers from the promotion, and the income from her first day of work as a Con Artist, soon Marla could afford a proper kitchen table AND some exercise equipment.
Since fitness is a requirement for the Criminal career track, I think Marla should be able to deduct the treadmill from her Sim Taxes.