Answer:
for these, none of them are equivalent
(A. 75/7 and (57)5
B. 5212 and ( 55 )
c. (1787)5 and 815/4
D. 6^2/7 and ()?)
75/7 = 10.714
57*5 = 285
^ aren't equivalent
5212 and 55 are different numbers
1787*5 = 8935
815/4 = 203.75
^ aren't equivalent
6^2/7 = 36/7 = 5.143
I assume () means 0
^ aren't equivalent