Answer:
The transformation was not added. See the attached file for the structure and the answer.
Step-by-step explanation:
In the first reaction it is normal nucleophilic substitution reaction on the addition of hydrobromide. Hindu second reaction first the Hydroxide Ion attacks on the tertiary carbon because it is more reactive then the anion formed is further converted into carbonyl. And on the addition of methyl iodide we get the required product.