Cole has a credit card bill of $3,100. his credit limit is $3,000. is cole using credit responsibly or irresponsibly?
a. responsibly
b. irresponsibly

I would say B, because if you exceed the limit on your credit card, that shows that you would know how to add money onto your account. You cannot use more on your credit card than you already have unless you add more money on.

IF all the bulbs are identical bulbs . . . . .

All the bulbs in series have the same brightness, and that brightness
depends on how many there are. More bulbs ... all are equally less bright.
Fewer bulbs ... all are equally brighter.

If the bulbs are not all identical, then it depends on what each one is, which one
was removed, etc., and it can get complicated.