Answer:
52.12
Step-by-step explanation
PEMDAS
Adding comes before subtracting
10+51=61
10+51 41=51.51
61-51.51=-52.12
They are all true. Hope that helps
When you convert a percentage into decimal you always divide by 100.
82/100 = 0.82

add

to both sides.

subtract 9 to both sides.
multiply 5 to both sides.

Your answer is D) z = -40