Answer:
c expression and b is number
Step-by-step explanation:
I can only guess that you meant to write
12 + 3 = 3 + 12
which would be the commutative property of addition.
Angle 2 is 180-127=53 degrees
angle G is 90
triangle has a total of 180 degrees, so angle 1 is 180-90-53=37 degrees
Answer:

Step-by-step explanation:
Basically, if you want to find the probability of getting either outcomes, you will need to subtract the probability of getting neither outcomes in the question. The probability for both outcomes are 7/9 and 5/9 respectively. You will have to multiply to get the probability of getting both of the non-desired outcomes. Hence, it gives the equation above