The stage of reasoning makes it possible to do simple sums but not use reversible operations. -formal operations thought beings at about age eleven and is the first time child's thinking can be said to be , and .

The stage of pre-conceptual thought is characterised by thought and operation.
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a charter of rights that the rebellion made for king john to approve for basic rights.

there are no options provided but you can choose among the following gender-neutral pronouns: zir, hir, eir, vis, tem, eir.

in the normal course of maintaining a pronoun-antecedent agreement, we could have used the words his or her but since we are also required to use gender-neutral language, we need to replace it with its equivalent gender-neutral pronoun.

answer; eliminate parking problems in cities, because a car took up only half as much space as a horse and buggy;

answer; the sons of liberty;