My math teacher didn't explain how to do this stuff and I've been struggling to understand what it is for like the past half hour. Please help. (sorry its a PDF there was no other easy way)

Add the fractions, and simply the result to lowest terms. 2/3 + 2/7= ?

Common binomial factor of 6x(3x+7)+5(3x+7)

Which of the following would be a correct step in proving that triangle abc is congruent to triangle cda? a. use a protractor to measure the angles and show that all the corresponding angles are equal in measure. this will allow you to prove congruence by aaa. b. show that segment ab is parallel to segment cd and segment ad is parallel to segment cb. this will allow you to prove congruency by asa. c. show that is segment ab is perpendicular to segment ad. this will allow you to prove congruence by sas. d. none of the above.