An adjective clause is a type of clause that also contains a subject and a verb, but functions to describe a noun. This clause is often introduced by pronouns such as whom, who, that, which and the adverb where, when and why. In the given sentence above, the adjective clause is, "who received a good grade". This clause describes the noun "student".
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Your correct answer is, between 14 and 15
Sure hope this helps you. And good luck on whatever math test is coming up soon!
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As the myth goes, Icarus was too excited and was not paying attention so he died.