Car accelerating to 72 km/h, maintaining speed, then braking to stop

[Xidike]

Homework Statement

A Car starts from the rest, accelerate and reaches the speed of 72Km/h in 20s. It keeps the speed for 5 minutes and then applies brakes and stops after covering a distance of 100m.
find:
Acceleration, Declaration, Total Distance Covered And Total Time Used..
please help me,

Homework Equations

The Attempt at a Solution

 

[Ibix]

What have you tried doing?

 

[yands]

A car start from rest accelerate .
Is it constant acceleration? And you have to show us some of your work

 

[CWatters]

Show us some of your ideas on how to approach the problem even if you think they are wrong.