The prisms as indicated in the image attached to the task content have some of their lines solid and some dashed because; the prism is a 3-dimensional figure and all sides must be represented accordingly.

<h3>What is a 3-dimensional geometric figure?</h3>

According to the task content, it follows that the prism as indicated in the image attached to the task content is a 3-dimensional figure.

Also, the solid lines represents the sides visible to the observer, while the dashed lines represents the side areas which are invisible to the observer.

Read more on 3-dimensional geometric figures;

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2 years ago

A group of students calculated their average score at a spelling bee. They realized that if one of them scored 9 more points, th

alukav5142 [94]

Answer: There are 4 students in the group.

Step-by-step explanation:

Let the number of students in the group be n

If one of them scored 9 more points , their average score would be 81 points.

So, our equation (1) will be