$4.$ Using the information from Exercise $4\mathrm{.}6($in the Exercises: Module $4)$:

Cargo weight is $3,480$ lb

Dimensions are $48$ in x $40$ in x $36$ in x $12$ skids

Shipping cargo from Toronto to Niagara Falls

a$.$ What is the chargeable weight?

b$.$ What is the rate breakpoint rounded to the nearest $100$ lbs$?$

c$.$ What is the chargeable weight used in the Bill of Lading for this shipment?

d$.$ What is the rate and the freight charges to ship from Toronto to Niagara Falls?