Find total bacterial cells in blood

Question: Not realizing the severity of the infection and that he/she should use intravenous dual-drug antimicrobial therapy, the doctor prescribes only oral doxycycline (a type of tetracycline antibiotic) and sends you home.

By this time, 35 cells of V. vulnificus have gotten into your blood. However, the doxycycline does slow the growth of the bacteria considerably to a generation time of 12 hours. Over the next few days, you take all of your doses of doxycycline, but become increasingly ill. Eventually, you collapse and are rushed to the hospital. It is determined that you have 8 cells/mL of bacteria in your blood. If you have 4.8 L of blood in your body,

2B) how many total bacterial cells are in your blood?

2C) How many generations have the bacteria been through from the time they entered your blood until you arrived at the hospital?

2D) How many days have passed since the bacteria entered your blood? (Assume a constant generation time of 12 hours with continued doxycycline treatment)