Analysis of Subscriber Costs for Month 5:
- The subscriber's tariff plan is "Standard" with a monthly fee of 350 rubles.
- This plan includes 300 minutes, 3 GB of internet, and 120 SMS.
- According to the graph, in month 5, the subscriber used approximately 350 minutes and 2.5 GB of internet.
- The SMS usage is not explicitly shown in the graph but is assumed to be within the 120 SMS limit.
- Call Usage: 350 minutes (used) - 300 minutes (included) = 50 minutes over limit.
- Internet Usage: 2.5 GB (used) - 3 GB (included) = -0.5 GB. The subscriber stayed within the internet limit.
- SMS Usage: Assumed to be within the 120 SMS limit.
- Cost of exceeding call limit: 50 minutes * 3 rubles/minute = 150 rubles (from the table: "Исходящие вызовы" is 3 rub/min).
- Cost of exceeding internet limit: 0 GB over limit.
- Cost of exceeding SMS limit: 0 SMS over limit.
- Total cost for month 5: Monthly fee + Cost of exceeding calls = 350 rubles + 150 rubles = 500 rubles.
Total Cost for Month 5: 500 rubles.