Angela Simpson is considering the purchase of a home entertainment center. The product attributes she plans to consider and the weights assigned to each attribute are listed in the table below.

$\backslash$table$[[$Product Attributes,$],[$Portability$,0\mathrm{.}1],[$Sound projection,$0\mathrm{.}6],[$Warranty$,0\mathrm{.}3]]$

Angela rated the brands as follows.

$\backslash$table$[[,$Portability,$\backslash$table$[[$Sound$],[$Projection$]],$Warranty$],[$Brand A$,6,8,7],[$Brand B$,9,6,8],[$Brand C$,5,9,6]]$

Using the consumer buying matrix, conduct a quantitative product evaluation rating for each brand.

Note: Do not round intermediate calculations. Round your answers to $1$ decimal place.

$\backslash$table$[[,\backslash$table$[[$Product$],[$Evaluation Rating$]]],[$Brand A$,],[$Brand B$,],[$Brand C$,]]$