Answer:
18 dollars
Explanation:
he is left with 8 dollars. He buys one granola bar (2), one smoothie (3), and one sandwich (5).
This means that he has spent 2 dollars, 3 dollars, and 5 dollars, which totals 10 dollars (2 + 3 + 5 = 10). He is left with 8 dollars, so we know that he originally had 18 dollars because 10 + 8 = 18.