Problem Rachel is a stunt driver, and she's escaping from a building that is about to explode!
D represents Rachel's remaining distance (in meters) after ttt seconds.
D=-38t+220D=−38t+220D, equals, minus, 38, t, plus, 220
How long is the distance Rachel has to drive?
meters

Bru bru bru bru bru bru bru bru bru bru bru bru

It depends on the subject for me. some exams are easier than others so i usually go through it and answer questions i know based on my general knowledge, then double check after. going through the lesson can a lot  because the exams can be  very lesson-specific, but sometimes they are ridiculously long so a lot of people don't take the time. i did find that, when i went through the lessons, i was making 100's on my exams vs strictly using + the internet and  i make 90's.