Pretty sure you just add 80% and 20% to get 100%, hope this helps....
Y2-y1/x2-x1 is the equation
The percentage mark up when purchasing avocados individually is 77.08%
Data;
- 6 avocado = 11.10
- cost of 1 avocado = 2.40
<h3>Percentage Mark up</h3>
To find the percentage mark up of one avocado, let's find the price of one avocado in 6 package of avocado.

The percentage mark up can be calculated as

The percentage mark up when purchasing avocados individually is 77.08%
Learn more on percentage mark up here;
brainly.com/question/1153322
Well a double negative makes a positive so it is just thirty two. But if you arent supposed to change it it is negative parenthesis negative thirty two parenthesis.
Answer:
10
Step-by-step explanation: