how to solve this by hand and input code ?

Netflix currently has approximately 47.13 million streaming subscribers in the U.S.1 and expe riences an increases in the number of streaming subscribers of about 1.3 million per month2. The current price for the standard streaming service is $8.99 per month. It is estimated that Netflix will have a 23% decrease/increase in new monthly subscribers for every dollar increase/decrease in the monthly cost of its streaming service. 1. Find the new subscription price that maximizes the monthly revenue from new subscriptions and the maximal monthly revenue 2. Determine the sensitivity of maximal mouthly revenue from new subscriptions to the tion of a 23% loss/ gain of new subscribers per dollar increase/decrease. 3. Netflix has recently announced that a SI increase in its monthly subscriptions will be imple- mented. What would be your advice to Netflix