Kathy earns $55,000 in the current period and will earn $60,000 in the future period. What is

Question:

Kathy earns $55,000 in the current period and will earn $60,000 in the future period. What is the maximum interest rate that would allow her to spend $105,000 in the current period? What is the minimum interest rate that would allow her to spend $120,500 in the future period?