You put it into a graphing calculator and it'll come up with answer D.
Answer:
1) 4
2) -11
3) 1
4) -2
Step-by-step explanation:
X - 1/2 (if you meant the difference between)
Answer:
the answer should be 152.6 ! just moving the decimal over to the left!!
Answer:

Step-by-step explanation:
Subtract 7 From both sides

7-7 = 0, 16 - 7=9
That leaves 
Hope this helps
~R3V0