Is 4 a triangular prism???? and what shape is 6?

Yeah 4 is bUr I’m not sure about 6  

Step-by-step explanation:

The article will cost altogether:

                       $ 42.75

It is given that:

The  retail price of the article is: $ 37.50.

Also, the article will hold a city tax of 6% and a federal excise tax of 8%.

Hence, the total percent tax on article is: 6+8=14%

This means that the cost price of the article is:

Retail Price of article+14% of retail price.

=  37.50+14% of 37.50

= 37.50+0.14×37.50

= 37.50+5.25

= 42.75

           Hence, the article will cost:  $ 42.75