On monday ethan sends an email to 3 friends the next day each of the 3 friends forward the email to 3 friends and so on as shown below how many people received the email by thursday?

its 13 people by Thursday

Step-by-step explanation:

if Ethan send the email to 3 people on Monday that means he also had the email on Monday so that's 3+1=4 and the next day would be Tuesday that's 3 more people and 3+4=7 so by tuesday there would be 7 people then theres Wednesday that's 3 more people if you do 3+7=10 that's 10 by Wednesday then theres thursday 3 more people 10+3=13 that's how I got my answer to you

ok then what happened.