Always when multiplying a positive number by a negative number, the answer is negative. So C and D Are out.
You calculate and Get -84
So, the Answer is A (-84)
Hope this Helps :)
Answer:

Step-by-step explanation:

Combine like terms

Distribute the 7

Subtract 3m from each side

Add 7 to each side

Divide by 4

Answer:
total: 3x + 7
Step-by-step explanation:
Nancy = x
Bill = 2x + 7
together = 3x + 7
Answer:
ummmmm I guess I could add the dimensions in the text.
Step-by-step explanation:
The picture is a black screen.
The answer would be y = 2 over 3x - 4