Question

81. If f(x) = 2^x, then 16^8=
(A) f(f(5))
(B) f(f(3))
(C) f(7)
(D) f(f(f(3)))
82. A semicircle is inscribed in an equilateral triangle as shown below. What portion of the
triangle lies inside the semicircle ?
a. pie root3/8
b. pie root3/4
c. pie root3/16
d. pie root3
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Answer 1

Answer:

answer for 81 is B and for 82 is down