The difference between a country's exports and imports is called the country's trade balance. if one country had a trade balance of -$102 billion in 1993, $101 billion in 1997, and -$40 billion in 1996. what was the total trade balance for these years?

Julia is going for a walk through the neighborhood. what unit of measure is most appropriate to describe the distance she walks?

Interest begins accruing the date of the transaction except for auto loans mortgages credit card cash advances credit card purchases

Assume that there is a 11% rate of disk drive failure in a year. a. if all your computer data is stored on a hard disk drive with a copy stored on a second hard disk drive, what is the probability that during a year, you can avoid catastrophe with at least one working drive? b. if copies of all your computer data are stored on four independent hard disk drives, what is the probability that during a year, you can avoid catastrophe with at least one working drive?