keeping in mind that vertical angles are always congruent.

I think the answer it would be D
Percentages are numbers that are units of 100
The value of 20% of 80 is 16
<h3>How to determine the percentage value</h3>
The model is not given.
However, the percentage value can still be calculated
The expression is given as:

Express of as product

Express 20 % decimal

Evaluate the product
16
Hence, 20% of 80 is 16
Read more about percentages at:
brainly.com/question/843074
Answer: 9/23
Step-by-step explanation:
1- Convert the mixed fraction to an improper fraction. 9 x 2 + 5 = 23 and keep the original denominator. 23/9
2- Now “flip” the fraction to its reciprocal. 23/9 becomes 9/23
3- Check to see if it can be reduced. It cannot so there’s your answer. 9/23