You add each number that is in the same position correlated to the box. Ex: 12+-3=9
Answer:

Step-by-step explanation:
Given
2 number die
Required
P(Sum = 4)
The sample space of 2 die is:


The pairs that adds up to 4 are:


So, the probability is:


3/2x + 1/5 >= -1
3/2x >= - 6/5
x >= -12/15
x >= -4/5
-1/2x - 7/3 >= 5
-1/2x >= 22/3
x <= -44/3
Its D
Answer:
21
Step-by-step explanation:
