The next guesses of the clerk should be less of red shells and more of white shells.
<h3><u>Decision about less of white and more red shells</u>:</h3>
Given that,
Red shell [r] costs = $0.75 each.
White shell [w] costs = $0.49 each.
Total of 8 shells = $4.70
The clerk guesses that the $4.96 for 4 red shells and 4 white shells is greater than the actual purchase.
Therefore,
The clerk should make use of less red shells, and more of white shells, because the unit costs of red shell is more than the white shell.
Learn more about equations, refer:
brainly.com/question/2574274