QR is congruent to PS
So if QR is 17.7 PS is 17.7
Answer 3.) PS equals 17.7
350 / 28 = 12.5 gallons, so 13 gallons needed
13 X 2.5 = $32.50
Answer:
The surface area is 
Step-by-step explanation:
see the attached figure to better understand the problem
we know that
The surface area of a triangular prism is equal to

where
B is the area of the triangular base
P is the perimeter of the triangular face
H is the height of the prism
<em>Find the area of the base B</em>

<em>Find the perimeter of the base P</em>

we have

substitute the values
The surface area is

Answer:
2
Step-by-step explanation: