simple harmonic oscillation

1. The problem statement, all variables and given/known data
A block of mass 5 kg is attached to a spring of 2000N/m and compressed a distance of 0.6m. The spring is then released and oscillates.
a. what are the period, frequency, and angular frequency
b. what is the energy in this system
c. what is the maximum velocity

2. Relevant equations
period=1/frequency
d^2x/dt^2 + (k/m)x = 0
$$\omega$$= (2*pi)*frequency= 2pi/period= sqrt(k/m)
E= 1/2mv^2 + 1/2kx^2= 1/2kA^2

3. The attempt at a solution
I have not been able to attempt a solution because I do not know where to start. Please help.

 PhysOrg.com science news on PhysOrg.com >> Heat-related deaths in Manhattan projected to rise>> Dire outlook despite global warming 'pause': study>> Sea level influenced tropical climate during the last ice age
 you have all your equations and all your variables needed to find your unknowns.. if omega = sqrt (K/m) find omega then you can find period and frequency, angular frequency from there. Energy of a spring is defined as.. 1/2 kx^2 ..find energy max velocity is when potential spring energy = kinetic energy, (equilibrium point)