Atruck traveling from new york to baltimore is to be loaded with two types of cargo. each crate of cargo a is 5 cubic feet in volume, weighs 100 pounds, and earns $14 for the driver. each crate of cargo b is 2 cubic feet in volume, weighs 250 pounds, and earns $9 for the driver. the truck can carry no more than 300 cubic feet of crates and no more than 10,000 pounds. also, the number of crates of cargo b must be less than or equal to twice the number of crates of cargo a.

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a b truck capacity
volume
weight
earning