Answer :
From the information available, we have a total of $6.00 to buy 2 items, iced tea and tacos.
The costs are given as;
[tex]\begin{gathered} \text{Iced teas}=1.75 \\ Ta\cos =0.79 \end{gathered}[/tex]The conditions given are such that we can spend $6 to buy both items. If we buy only iced teas, we would be having;
[tex]1.75x=6.00[/tex]If we buy only tacos, we would have;
[tex]0.79y=6.00[/tex]However, we are buying both which means we would be having the following equation;
[tex]1.75x+0.79y=6.00[/tex]Remember however that we have only $6 to spend and nothing more, but we can spend a litle less than $6. That means we can spend $6 or less, but nothing that exceeds that amount. Thats why we can now re-write this as an inequality in the form of "less than or equal to."
Our inequality for this situation therefore would be;
[tex]1.75x+0.79y\le6.00[/tex]ANSWER:
The correct answer is option D