I’m about to give up on my grades I can’t do it :( any tips?

You can always make up work that is the lowest, also if you can you should remake tests

The correct answer is wood^4

Which of the following is an example of an opposing signal? no examplthates given.   i would say, that traffic lights in a city at major intersections direct the flow of traffic in opposite directions so would be an example.also, stop signs on either side of the same street would be an example. at a train crossing, the light for allowing car traffic in opposite directions or not would be another example.