1. Trisha and Malia went to the mall with their mom. Trisha spent $15.60 on a pair of sunglasses. Malia spent $29.80 more than Trisha on a new handbag. Their mom spent 2 ½ times as much as Malia on an espresso machine for their kitchen. How much money did their mom spend on the espresso machine? (no words, labels, or symbols)