At combs store there is a 25% chance a customer enters the store within one minute of closing time. describe the complementary event and find its probability

pay attention in your classes and concentrate the best thing you can do to raise your test scores is to pay attention when you're supposed to be learning the material: in class!

take good notes.

do your homework.

use mnemonics and other tricks.

do practice tests.

note: the best i know.