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1953 AMC 12 Question 38

AMC12 · 1953 AMC 12

Question 38

If $f(a)=a-2$ and $F(a,b)=b^2+a,$ then $F[3,f(4)]$ is:
  1. $a^2-4a+7$
  2. $28$
  3. $7$
  4. $8$
  5. $11$