just need step by step. Shelf-Life calculations

Thank you!

2. The shelf life of an API in a solution was found to be 25 days. What is the drug's specific decomposition rate constant k per hour at room temperature that can be obtained from an Arrhenius plot? 1.76 x 10' hr 3. The decomposition rate k per hour at 40C during solid state stability studies was found to be 2.3 x 10 hr. What is the shelf life of the drug in days at that temperature? X 190.9 days 4. If the shelf life of an experimental drug is 90 hours? What is the drug's specific decomposition rate constant k per hour by the Arrhenius plot? 1.17 x 10 hr