Tasi Sun’s savings account statement showed a previous balance of $21,395.65 and interest of $14.39. The statement also showed deposits of $498.88 and $98.10 and withdrawals of $8,498.23. What is her new balance?

Sanya noticed that the temperature was falling at a steady rate of 1.4 degrees every hour from the time that she first checked her outdoor thermometer. by 6 a.m., the temperature had fallen 21 degrees. which expression can you use to find how many hours earlier she had first checked the thermometer?