Answer: your answer is A) & D)
Step-by-step explanation: Hope this helps :)
Answer:
0 what is the question man what
Answer:
510
Step-by-step explanation:
(0.68)750
shift decimal places
510.00
refine:510
Answer: 
<u>Remove "x" and add</u>
-2 + 9 = 7
<u>Add "x" back</u>
7 -----> 7x
Note: When adding/subtracting problems like these remove "x" and then add/subtract normaly. When you get your answer put x back.