Given the following ODE:

$10\frac{d^{2}y(t)}{d{t}^2}+5\frac{dy(t)}{dt}+y(t)=2u(t)$

a$)$ What is the Laplace transfer function between the output $y(t)$ and the input $u(t)?$

b$)$ What is the time domain solution when the input is a unit step?