2. the cost of a cell phone is $500. according to the cellular device contract, you will need to be
$0.15 per minute for the first 6oo minutes.
a. write the function that models the total cost of the cell phone bill for the first 600 minutes
b. write the domain of the function interval notation).

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.