I don't really get what you are asking for. Can you clarify it?
A value equal to -(-3.7) is 3.7
The negative signs outside and inside zero out each other, which means you will get a positive. Think of (negative) as opposite. The opposite of an opposite will cancel out and give you what you had.
Answer:
30
Step-by-step explanation:
if you take 3+6+9+12 you get 30
Not sure if it's one of the answer you listed.
The • means multiplication, so it would be
54 times 58, which equals 3,132.
Answer:
21
Step-by-step explanation: