"A number subtracted from 14 is 2."

Evaluate the following expression 1/3^2

An energy drink company claims that its product increases students' memory levels. to support its claims, the company issues advertisements claiming that 8 out of 10 people (chosen randomly from across the country) who tried their product reported improved memory. the missing component in this study is a .

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