The following tables give the capital expenditures and gross operating costs of manufacturing establishments for pollution abatement,

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The following tables give the capital expenditures and gross operating costs of manufacturing establishments for pollution abatement, in millions of dollars.


(a) Use a calculator or spreadsheet to find the sum of the matrices containing these data. This will yield the total costs of manufacturing establishments for air, water, and solid contained waste pollution abatement for the years 2016–2019.

(b) Which type of pollution abatement was most expensive in 2019?

Pollution Abatement Capital Expenditures Solid Contained Waste Air Water 2016 6030.8 2562.0 817.5 2017 3706.3 2814.6 869.1 2018 4403.1 2509.8 953.9 2019 4122.0 2294.9 760.9 Pollution Abatement Gross Operating Costs Solid Contained Air Water Waste 2016 5010.9 6416.4 5643.5 2017 5033.5 6345.0 6008.2 2018 5395.0 6576.9 5494.5 2019 5574.6 6631.8

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