<human>:  Sammy has 8 gifts to wrap. Each gift requires 1.5 meters of ribbon. Unfortunately, she has no available ribbon so Tom let her use his 15-meter long ribbon. How many meters of ribbon will be left from Tom's ribbon?
<bot>: How many meters of ribbon are needed? ** The eight gifts require 1.5 meters/gift x 8 gifts = <<1.5*8=12>>12 meters of ribbon.
How many meters of ribbon will be left from Tom's ribbon? ** So, Tom will be left with 15 meters - 12 meters = <<15-12=3>>3 meters of ribbon.
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