Suppose the probability of an event occurring is p(a), and the probability of the event not occurring is p(a'). if p(a) = m and p(a') = n, which of the following equations must be true?
a. m = 1 + n
b. n = 1 - m
c. n = m + 1
d. m =n -1

According to the 2008 u.s. census, california had a population of approximately 4 × 10^7 people and florida had a population of approximately 2 × 10^7 people. which of the following is true? a. the population of florida was approximately two times the population of california. b. the population of florida was approximately twenty times the population of california. c. the population of california was approximately twenty times the population of florida. d. the population of california was approximately two times the population of florida.

At $1.32 million, they closed last month percent above what they paid in 2007." how much did they pay in 2007?

Asap! i'm not good math and i'm lost.