Rounding is when you have at least a two digit number (26 for example) and if the number the right (6) is 5 or above then the number goes up one unit, (therefore 26 becomes 27). But if the number (22) to the right is 4 or lower, then the number to the right stays the same, but the number to the right becomes a zero, (making 22 now 20).
For this
specific problem, the answer would be $7,179. The correct answer between all the
choices given is the second choice or letter B. I am hoping that this answer
has satisfied your query about and it will be able to help you.