8. What includes retail sales, housing starts, and truck and

auto sales

monthly data series in a GDP

Explanation:

A GDP is defined as the actual domestically manufactured or produced products or the services provided in a financial year which describes or estimates the financial status or economic status of a country. GDP stands for Gross domestic product.

By analyzing the monthly data series of goods or services produced one can predict the real GDP of a country to be. One can use the monthly observations of the employment, unit auto as well as truck sales, sousing starts, retail sales, trade, automobile inventories, manufacturing, shipment of machinery and equipment, index of the industrial production, etc. to predict the GDP growth or get an idea of the GDP figures that are going to show the robust growth of the economy.

water and oil do not mix because water is hydrophilic (it is attracted to itself) and oil is hydrophobic (it is repelled by water).

answer; read and consider the content of the items;