What's the answer to this question18y-9y=45

The parabola x= √y-9 opens: a.)up b.)down c.)right d.)left

Compare the following pair of numbers a and b in three ways. a. find the ratio of a to b. b. find the ratio of b to a. c. complete the sentence: a is percent of b. a=120 and b=340 a. the ratio of a to b is . b. the ratio of b to a is . c. a is nothing percent of b.

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