Lisa sends an email to five friends. The next day, each of Lisa's friends forwards the email to five more people. The (mathematical) process continues for a few days. Which function represents the number of people who will receive the email on the nth day?

A) cn = 5n

B) cn = 5n

C) cn = n + 5

D) cn = n5 + 5

cn=5^n

Step-by-step explanation:

Because every day five times the number of people that have it get the email. So on the first day it's 5, the second 25, the third 125, the fourth 625, so on and so fourth.

8 2/3 is the answer

step-by-step explanation: just use a calculator

the system of inequalities is

step-by-step explanation:

step 1

find the equation of the dashed line

we have the points

(0,0) and (3,1)

the line passes through the origin, so, is a direct variation

find the slope

the equation of the dashed line is

the solution of the inequality a s the shaded area above the dashed line

therefore

the equation of the inequality a is

step 2

find the equation of the solid line

we have the points

(4,0) and (0,4)

find the slope

the equation of the solid line is

the solution of the inequality b s the shaded area below the solid line

therefore

the equation of the inequality b is

step 3

the system of inequalities is