Question

Janet told a secret to 4 friends. The next day, each of Janet's friends told the secret to 3 more people. The process continues for multiple days. Which function represents the number of people who will know the secret on the nthnth day?
A.
P(n)=3n+4P(n)=3n+4
B.
P(n)=4(3)nP(n)=4(3)n
C.
P(n)=4+(3)nP(n)=4+(3)n
D.
P(n)=n3+4P(n)=n3+4

Answer 1

look at the values for n

n #people
0 4
1 4*3
2 (4*3)*3 = 4*3^2
...
n 4*3^n

why do you repeat all the math? It's very distracting and annoying.