Convert from rebah to bag [portland cement]

Unit Definition (rebah)
The rebah is an ancient Hebrew unit of weight or mass equal to 1/4 shekel. The word means "quarter" in Hebrew.

Unit Definition (bag [portland cement])
The bag [portland cement] is a unit of weight for cement. Traditionally a bag of portland cement weighs 94 pounds (42.6 kilograms) in the US. and 87.5 pounds (39.7 kilograms) in Canada. However, cement is now being sold also in metric-sized bags of 50 kilograms (110.2 pounds) by many suppliers.