The first few problems are exercises in solving inequalities and using interval notation, as described in sections A1 and A6 of the textbook. For example, the set of inequalities $$-1 < x\leq 3$$ describes the interval $(-1,3]$ Enter that interval by typing a round opening parenthesis, the number -1, the number 3, and a square closing parenthesis in the following four answer fields:
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In this problem, WeBWorK will tell for each answer individually if it is correct, so you can check what you are doing. In the following problems you will need to get all answers right before getting credit.