What is the graph of the solution set of 15< 3x+5< 21

What is the missing reason in the proof? segment addition congruent segments theorem transitive property of equality subtraction property of equality?

This graph shows which inequality? a ≤ –3 a > –3 a ≥ –3 a < –3

Henry's butcher shop uses an electronic scale that measures to 1/100 of a pound. which is the most accurate measurement based on the limitations of the scale that might be found on a package of meat sold by henry?