what are the more appropriate measures of center and spread for this data set? select two choices: one for the center and one for the spread

What kinds of numbers make up the set of numbers called the real numbers? give examples when you explain a number type. there are a limited set of types of numbers, but an unlimited number of examples of these numbers.

Y+ 2/y is it a polynomial in one variable or not? and if so, why?

Asequence has a common ratio of and f(5) = 81. which explicit formula represents the sequence? f(x) = 24 f(x) = 16 f(x) = 24 f(x) = 16