please, solve with explanation.

> Question 2 4 pts Determine whether the proposition is TRUE or FALSE. 5 > O if and only if 1 > 2 True O False U 4 pts Determine if the proposition - (r -9) v (p ^ -r) is True or False when p = T, q = F, and r = T. True False Question 4 4 pts Which of the following is the proper if..then form for the following expression: "To be able to vote in the election it is necessary that I be at least 18 years old." If I am at least 18 years old, then I will be able to vote in the election If I am less than 18 years old, then I am not able to vote If I am able to vote in the election, then I am at least 18 years old If I am not able to vote, then I am less than 18 years old Which of the following statements is logically equivalent to the statement: "It is warm in the summer unless it is nighttime."? If it is not warm in the summer, it is nighttime If it is nighttime, it is not warm in the summer If it is nighttime, it is warm in the summer If it is warm in the summer, it is not nighttime