Answer:
X + 2= 0
X - 4 > 7
-4 + y = 3y + 4 (y - 3)
990
Step-by-step explanation:
It can't be
There is no variable
7×10³+3×10²+4×10¹+2×10 or 7.342×10³
20=-1
60=-3
100=-5
240=-12
divide time and depth by 20