Select the equation that matches the tape diagram 30 x+6 x+6 x+6

Will give brainliest sum of arithmetic series (sigma notation) find the numerical answer to the summation given below. (image shown below)

Explain why the two figures below are not similar. use complete sentences and provide evidence to support your explanation. (10 points) figure abcdef is shown. a is at negative 4, negative 2. b is at negative 3, 0. c is at negative 4, 2. d is at negative 1, 2. e

Determine whether the set of whole numbers is closed under addition. explain why the set is or is not closed. give an example.