What jurisdiction (department)?
What kind of area (commercial, residential, mixed, etc)?
How determined (radar/Lidar/pacing)?
Is it a mandatory court appearance?
If it's not mandatory, I'd probably skip the court and do driving school.
Otherwise, hire an attorney.
Going into court on your own on something like that is suicide (IMO). They whole "throw yourself on the mercy of the court" thing is BS nowdays. All are $$$ hungry and there is little "mercy" any more.
On the other hand, 100/45 is a bit tough to reason out
(Tell 'em your Lloyds mat got stuck onder your throttle
)