please indicate which question you are answering, thanks so much

a)for this question , am i just supposed to plug 2 into x?

lim x->2 (x^2-3x+9) / (x-3)

b) lim x-> infinity 10^ (1/x)

c) lim x->5 (x^2-167)^(1/2) -3 / (x-5)

d) lim x->infinity x^2 - 5 / 2-3X^2

e) lim x-> -3 x^3+27 / 2x^2 + 6x

f) lim x-> 2 x^3+x-7 / x-2