the laplace transform of (t)= t^1/2 as F(s)=sqrt of pi/s, find Laplace transform of 7t^3/2.

Find the Laplace transform F(s) = L{f(t)} of the function f(t) = et 4h(t – 4), defined on the interval t > 0. F(s) = L{et 4h(t - 4)} = e^(t-4)t-4e^(t-4) help (formulas)