<h3>The given expression as single exponent is:</h3>

<em><u>Solution:</u></em>
<em><u>Given expression is:</u></em>

In exponents,
When the base is same, exponents can be added
Which means,

Therefore,

Thus the given expression as single exponent is:

Answer:
<h2>Pi/4(4r²/3)</h2>
Step-by-step explanation:
D is the correct option.
Answer:
Perimeter = 18
6 + 6 + 3 + 3=18
Area= 18
6 x 3 = 18
Step-by-step explanation:
I hope this can help!!!