Answer:
$1.38
Explanation:
First, we can add up the amounts for Greg's breakfast to find the total bill:
5.95 + 1.50 + 1.75 = $9.20
Now, we multiply 15% (or 0.15) by 9.20 to find how much tip Greg should leave:
0.15 * 9.20 = 1.38
Thus, he should tip the waiter $1.38