The final grade in Emily's elementary education class is calculated by taking 45% of her grade on projects, 5% of her attendance grade, and 50% of her grade on exams. 'Which of the following is the best representation of Emily's final elementary education grade? = Emily's final elementary education grade cannot be written as a function because there is more than one output. O f(P, A E)=045P + 0054 + 0.5E O (P, A, B)= 22 A & I {hda + o5 + .50 O f(P, A E)= 3 Emily's final elementary education grade cannot be written as a function because there is more than one input