Please help with marketing study guide:

Chapter $8$ Market Segmentation, Targeting and Positioning

$1.$ Why a business firm segments its markets?

$2.$ Market segmentation, market segments, and product differentiation

$3.$ Market$-$product grid

$4.$ Five steps in segmenting and targeting markets

$5.$ One product$/$multiple markets vs$.$ multiple products$/$multiple markets vs$.$ segments of one

$6.$ Segmentation Tradeoff

$7.$ Customer lifetime value

$8.$ Bases for segmentation $($consumer and organizational$)$

$9.$ Criteria to use in picking the target segments $($markets$)$

$10.$ Concentrated vs$.$ Differentiated vs$.$ Undifferentiated

$11.$ Market$-$Product synergies

$12.$ Cannibalism

$13.$ Positioning head$-$to$-$head and differentiation

$14.$ Product repositioning

$15.$ Perceptual maps