In research essays, brackets [ ] are used by writers to demonstrate when.

With any turning vehicle, the rear wheels follow a shorter path than the front wheels. the longer the vehicle is, the greater the difference will be. truck drivers initially swing out before making a turn. what isn't shown in this illustration is as car straightens out, the front wheels must travel a greater distance and the tail end drags on the shortest path.

It’s according to the question. but most of the time the answer is b

For the sat there is a reading test, math test, and a writing and language test. the act has social studies and science tests.