Can you tell me the standard recommendation for the shelf-life of over-the-counter eye drops once opened? My drops both have expiration dates of about 14 months from purchase, but it states nothing about once it is opened. Are they safe to continue using after several months?
Mixed number. A mixed number is a whole number plus a fraction. Here are a few mixed numbers: 1 1/2 1 1/3 2 1/2 2 2/5 1 4/5 You can convert a mixed number to an improper fraction by finding the number of unit fractions in the whole number and then adding the fractional part of the whole number. This sounds hard, but it really isn't.
63 The definition of a composite number is where more than 1 and the number itself can be used to get that number. With the number 63, 1x63=63 but also 9x7=63 so it is a composite number. 13, 61, and 31 are prime numbers where only 1 and that particular number will give you the answer. I hope that helps.