PB = 12 (P=1, B=2) Numerical values are assigned to each letter and each letter takes on a single number.
The answer for your question is A
Approximately 84 people will be sick with the flu after 11 days. The equation is f(x)=36(1.08)^x and you would substitute the amount of days in for x. The formula I used is f(x)=ab^x where a is the initial value and b is the multiplicative rate of change.
I believe answer one...I hope I helped!