Teachers, save “Test Prep Thursday 4-18-19” to assign it to your class.

Explain the steps you took to solve ALL FOUR problems and share your final answer for all three. Go ahead and number your problems 1, 2, 3, and 4 in the note to make it easier to read. Please be as descriptive as possible in your explanation, almost like you're teaching a friend. If you need to guess, at least explain why you guessed that option.