Well Wouldn’t that be 6? Because you asked 3 people to do a favor then you,ask each of them to do a favor for 3 more people easy 3+3=6.Hope this helps!
Answer:
Check the explanation
Step-by-step explanation:
a) The following exponential model would fit the given dataset : 
b) To cool down to 110 degrees, it would take approximately 7.3 minutes based on the above model.
B2-7b+12=0
(b-3)(b-4)=0
b= 3 or 4
Cube both sides
remember PEMDAS
parentheses
Exponents
Multiplication
Division
Addition
Subtraction