The correct answer on how Marcelina does this expenses is that Marcelina spends the intended amount of money and buys more than the intended amount of corn.
<h3>How to check the expenses that Marcelina made</h3>
The numbers at point C are 20,50.
What she is supposed to buy are
30 white corn and 20 yello maize
20 + 50 = 70kg
This has shown that Marcelina has bought more than the amount of corn that she is supposed to buy.
Meanwhile what she was supposed to get was 50 kg.
Read more on Marcelina's expenses here:
brainly.com/question/28030492?referrer=searchResults
#SPJ1