Since i = 2% is the monthly rate, we multiply 2% x 12, the number of monthly periods in a year in order to determine the annual rate. In this case, Aaron needs to find an interest rate of 24% per year compounded monthly in order to reach his future value goal of $634 in one year.
You need to detirmine what is causing the erosion of enamel. Once enamel is gone, the dentin is exposed.The dentin is not as tough as the enamel, so it will wear out faster than the enamel did. Stop drinking soda, gatorade, anything carbonated. Also, visit the dentist immediately.nce enamel is gone, the dentin is exposed. The dentin is not as tough as the enamel, so it will wear out faster than the enamel did. Stop drinking soda, gatorade, anything carbonated. Also, visit the dentist immediately.
As we age, the outer layer of tooth enamel wears away. The underlying layer, called dentin, is yellower. That's why it's important to try to avoid staining teeth in the first place, especially after whitening. If you take care with foods and drinks that discolor teeth, the results of whitening may last up to one year.