It is a customary unit.
The pound is NOT a metric unit.
I'm guessing by customary, you mean imperial. if so inches are customary/imperial
it is a customary unit
The customary unit would be miles (mi), and the metric unit would be kilometers (km).
a metric ton
Metric
Depends on if by 'customary' you're referring to a short ton or a long ton. A short ton is less than a metric ton; a long ton is more than a metric ton.
It is a customary unit.
customary
Metric.
A "gran" is a German measurement, it is neither customary or metric. A "gram" is a metric unit.
Fahrenheit is a customary unit
The pound is NOT a metric unit.
It is a customary unit.
customary
I'm guessing by customary, you mean imperial. if so inches are customary/imperial