Use the method pemdas and you get x=28
A)

B)

C)

D)

You were correct, the exact answer is A. The others do not equal 23 besides that one. Good job!
Answer:
A
Step-by-step explanation:
The Y-intercept is -3.
The gradient is -3/4 since it goes down 3 every 4 tiles.
Answer:
9y+45
Step-by-step explanation:
9(y+5)
=9*y+9*5
=9y+45