For each of the problems below, solve for the variable, write your answer using set notation, and plot your answer on the number line. Remember to use the appropriate endpoints! Your answer to 4) is: Your answer to 5) is: Your answer to 9) is: Your answer to 10) is: Your answer to 2) is: Your answer to 3) is: Your answer to 7) is: Your answer to 8) is: