It has to be the first one
D is the answer
(4+8)+1 = 13
4+(8+1) = 13
Therefore equation D is true
Answer:
5 is the answer
Step-by-step explanation:

Calculate 9 to the power of 2 and get 81

Add 44 and 81 to get 125

Calculate 5 to the power of 2 and get 25

Divide 125 by 25 to get 5

Just took the test. A is the right answer.