-5 is the answer I believe
Estimate to nearest hundreds is 600
Estimate to nearest tens is 610 or 520
Answer:
1. B
2. A
Step-by-step explanation:
I've done this before, very easy.
There is a total of 3 like terms
Answer:

Step-by-step explanation:
Let the co-ordinates of B be 
If a point
is a mid-point of line segment AB with
and
, then:

Here,
is
is
.
So, 
Plug in the formula and solve for unknowns.

Therefore, the co-ordinates of point B are 