Marty has 54 emails. Of these, 22 are from his friends at school. To the nearest percent, what percent of the emails are from Marty's friends at school?
ok so out of all emails (55), 22 are from friends so percent means parts out of 100 22 out of 55=x/100 22/55=x/100 2/5=x/100 multiply both sides by 100 40=x answer is 40%
