Which choice best describes the structure of the passage? А
A new conjecture challenges an old assumption.
B
Two groups argue about the validity of a
hypothesis.
BE
C
Researchers build an experiment to test a
hypothesis.
D
Researchers obtain results in support of a new
study.

If (a, b) is the solution to the system of equations shown above, and a and b are integers, then what is the value of a+b?

2. your driving record a. is totally confidential. b. may be available to the public. c. is available only to your employer with your authorization.

Based on the narrator's comments about living with the widow douglas, the reader can infer that a) the narrator doesn't care much for civilization and its strict rules. b) the narrator admires and wants to become more civilized and refined. c) the narrator is extremely religious and of high moral standing. d) the narrator desires to become a productive member of society.