Answer:
a part of the population that represents the entire population
Step-by-step explanation:
Hey there!
The shape you're looking for is a
rectangular pyramid. A rectangular pyramid has a rectangular base and four triangles that make up the four sides and meet up at the points at the very top. I've attached a picture so you can see it for yourself.
Hope this helped you out! :-)
(5x+13)+82=180
5x+ 95=180
5x=180-95
5x=85
x=17