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Reba, a teacher's assistant, is grading quizzes. The function f(x)f(x) gives the number of quizzes she can grade in xx minutes.\newlineWhat does f(30)=15f(30) = 15 tell you?\newlineChoices:\newline(A)Reba can grade 1515 quizzes in 3030 minutes.\newline(B)Reba can grade 3030 quizzes in 1515 minutes.

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Q. Reba, a teacher's assistant, is grading quizzes. The function f(x)f(x) gives the number of quizzes she can grade in xx minutes.\newlineWhat does f(30)=15f(30) = 15 tell you?\newlineChoices:\newline(A)Reba can grade 1515 quizzes in 3030 minutes.\newline(B)Reba can grade 3030 quizzes in 1515 minutes.
  1. Understand function f(x)f(x): Understand the function f(x)f(x) and its variables.\newlineThe function f(x)f(x) represents the number of quizzes Reba can grade in xx minutes. Here, xx is the number of minutes.
  2. Interpret f(30)=15f(30) = 15: Interpret the given function value f(30)=15f(30) = 15. Since f(x)f(x) gives the number of quizzes graded in xx minutes, f(30)=15f(30) = 15 tells us that Reba can grade 1515 quizzes in 3030 minutes.

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