Compared to steel, cast iron is limited in its usefulness because it is . What one word completes the sentence

The number of potato chips in a bag is normally distributed with a mean of 71 and a standard deviation of 2. approximately what percent of bags contain between 69 and 73 potato chips? approximately 68% approximately 71% approximately 95% approximately 99.7%

Segment ab is shown on the graph. which shows how to find the x-coordinate of the point that will divide ab into a 2: 3 ratio using the formula

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