Two investments totaling $28,000 produce an annual income of $1435. One investment yields 9% per year, while the other yields 2% per year. How much is invested at each rate?

The random variable x is the number of occurrences of an event over an interval of ten minutes. it can be assumed that the probability of an occurrence is the same in any two-time periods of an equal length. it is known that the mean number of occurrences in ten minutes is 5.3. the appropriate probability distribution for the random variable

An of a of 60. a of 36 is . isbe ?to .

The ratio of white marbles to blue marbles in connie's bag of marbles is equal to 2: 3 there are more than 20 marbles in the bag . what is a possible number of white marbles and blue marbles in the bag.