Kris forwards an e-mail to 5 people. Each of those people forward that e-mail to 5 more people. If this happens two more times, which expression shows the total number of people who have received the e-mail, not including Kris?
Kris forwards an e-mail to 5 people. Each of those people forward that e-mail to 5 more people. ( 5 * 5 ) If this happens two more times ( 5 * 5 * 5 * 5 )
the expression for this would be 5^4, or five to the fourth power
