Aclimber is on a hike. after 2 hours he is at an altitude of 400 feet. after 6 hours, he is at an altitude of 700 feet.
what is the average rate of change?
a 75 feet per hour
b 200 feet per hour
c 116 feet per hour
d 100 feet per hour

Three times the sum of a number and seven is negative thirty-six. what is the number?

Asix-sided number cube is rolled twice. what is the probability that the first roll is an even numbe and the second roll is a number greater than 4?

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.