The world's largest bird is the ostrich, whose mass can be as much as 156.5 kilograms. what is the approximate weight in pounds?

One integer is 8 times another. if the product is 72, then find the integers

Carl's candies has determined that a candy bar measuring 3 inches long has a z-score of +1 and a candy bar measuring 3.75 inches long has a z-score of +2. what is the standard deviation of the length of candy bars produced at carl's candies?

Jane’s favorite fruit punch consists of pear, pineapple, and plum juices in the ratio 5: 2: 3. how many cups of pear juice should she use to make 20 cups of punch?