Work out the coordinates of the midpoint of AB

The standard deviation for a set of data is 5.5. the mean is 265. what is the margin of error?

If private savings 'v' = 0.75s and total savings 's' equals $4.20 billion, solve for public and private savings.

Solve: 25 points find the fifth term of an increasing geometric progression if the first term is equal to 7−3 √5 and each term (starting with the second) is equal to the difference of the term following it and the term preceding it.