Diff equation

A. If there is a matrix, which is 3x8, and 3 columns are linear dependent, then can it be full rank? If not, what rank is it? B-2-9 (Req Text): Given F(S ) = 5(s+2) s(s+1) obtain the final value of f(t) using the final value theorem. B-2-10 (Req Text):Given F(s) = 2(s+ 2) s (52+ 45+ 3) obtain the initial value of f(t) using the initial value theorem. B-2-13a(Req Text): Obtain the inverse Laplace transforms of the following function F (s) ( s+ 5 ) (52+4s+ 3 ) B-2-22(Req Text): Solve the equation for x(t) where x" + 4x = 0, x(0) = 5, x'(0)=0