Answer:
$22.41
Step-by-step explanation:
In order to calculate the amount of change that Robert should receive we need to add the cost of each item including the sales tax and then subtract that total from the $100 bill that Robert paid with. Which would be the following...
25 + 7.95 + 7.95 + 14.50 + 14.50 + 7.69 = 77.59
100 - 77.59 = 22.41
Finally, we can see that the total bill was $77.59 which means that Robert should receive $22.41 in change.