Iam a three -digit number and a common multiple of 2,7 and 1. the sum of my digit is 10. what number am i?

Translate the following to mathematical x is more than or equal to fourteen​

Brenda has $500 in her bank account.every week,she withdraws $40 for expenses.without making any deposits,how nany weeks can she withdraw this money if she wants to maintain a balance of at least $200? ​

4x²-25 using quadratic formula