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Answer:
1)49
2)231
Step-by-step explanation:
1)
4+9=13
4*2=8
8+1=9
2)
2+3+1=6
2+1=3
1*2=2
The answer is a the first one
Since the events are dependent, the probability of occurrence of event B will impact the probability of occurrence of event A. So we will be using the formula of conditional probability to find P(A ∩ B).

Here P(A*B) indicates P(A ∩ B).
Using the values, we get:
P(A ∩ B) = 0.25 x 0.4 = 0.1
Thus, option A gives the correct answer.
The real axis is a horizontal axis, and if it's located in above the horizontal axis, then its real part is positive -this leaves us with the option b) - the correct answer- since the real part of c) and d) is negative and would be below the x axis and the real part of a) is 0 and would be ON the x axis.