Big vampire lady

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If a || b and b | y, then ? a) x || y. b) x | a. c) a | y. d) a || y.

Identify the number as a rational or irrational.explain. 127

Graph the line that represents a proportional relationship between d and t with the property that an increase of 33 units in t corresponds to an increase of 44 units in d. what is the unit rate of change of dd with respect to t? (that is, a change of 11 unit in t will correspond to a change of how many units in d? )