Adam plans to choose a video game from a section of the store where everything is 75% 75
%
off. He writes the expression −0.75
d
-
0
.
75
d
to find the sale price of the game if the original price is
d
dollars.

Rena correctly writes another expression, 0.25
0
.
25
d
, that will also find the sale price of the game if the original price is
d
dollars.

Use the drop-down menus to explain what each part of Adam's and Rena's expressions mean.

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.