This is a true statement if the question's asking if it's true or false. hope this helps

**Answer:**

**Step-by-step explanation:**

HEY

Considering that each input is related to only one output, the **correct option **regarding whether the **relation is a function** is:

**A.** yes.

<h3>When does a relation represent a function?</h3>

A relation represents a function when each value of the input is mapped to only **one value of the output**.

For this problem, we have that:

- The
**output **is an activity.

There are no repeated inputs, hence the **relation is a function** and** option A** is correct.

More can be learned about **relations and functions** at brainly.com/question/12463448

#SPJ1

**Answer:**

It depends on what shape you have. Here are some formulas for different shapes.

**Step-by-step explanation:**

Rectangular prism: 2lw + 2lh + 2wh

Cylinder: 2 pi <em>r</em>² + 2 pi <em>rh</em>

Sphere: 4 pi <em>r</em>²

Cone: pi <em>r</em>² + pi <em>rl</em>

Square-based pyrimid: 1/2<em>lp</em> +<em>B</em>

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I hope this helps!