15 people received an email and sent it to 3 different friends each, who in turn sent it to 2 new people. what percent of the total number of people who received the email are in the original 15 people?

Diane’s bank is offering 5% interest, compounded monthly. if diane invests $10,500 and wants $20,000 when she withdrawals, how long should she keep her money in for? round to the nearest tenth of a year.

Cody was 165cm tall on the first day of school this year, which was 10% taller than he was on the first day of school last year.

What is the graph of the function fx x+2/x-3?