Find the total surface area of the net below.
3 m
-2.6 m
9m

Step-by-step explanation:

The picture of the question in the attached figure

Part 1) using a formula

we know that

The surface area of a triangular prism is equal to

where

B is the area of the triangular face

L is the length of the triangular prism

P is the perimeter of the triangular face

Find the area of the triangular face B

Find the perimeter of the triangular face P

we have

substitute

Part 2) Using the net

The surface area is equal to the area of two triangular faces plus the area of three rectangular faces

so

wholesale price is the initial price before markup. retail price comes after the markup.

a price of 8 bucks that's marked up by 100%   is

formula: initial price + (percent markup in fraction/decimal)(initial price)

8+(1)(8)

8+8

16

retail price is $16.