Classify each scale factor as a contraction or an expansion. 5, 0.9, - 6, 8/5, 3/8

The values 5, 8/5 = 1.6 and - 6 are all expansions because their absolute value is larger than 1. Note that |-6| = 6.

On the other hand, 0.9 and 3/8 = 0.375 are contractions because their distance from zero (aka absolute value) is less than 1.