Tanya and Thad are twins with very different spending habits. Thad is learning to invest his weekly earnings in stocks, and Tanya can't wait to buy a smartphone. Thad loans his sister the money to buy one, but overcharges and interest soon catch up with her. What lesson will Tanya learn about money management?Tanya and Thad are twins with very different spending habits. Thad is learning to invest his weekly earnings in stocks, and Tanya can't wait to buy a smartphone. Thad loans his sister the money to buy one, but overcharges and interest soon catch up with her. What lesson will Tanya learn about money management?