Answer:
Step-by-step explanation:
46+x=77 subtract 46 from both sides
x=31
Answer:
or 5.5
Step-by-step explanation:
In order to find the slope of a line using two points on a graph, you must use

Pluging in the points (-4,7) and (-6, -4) to the formula you will get:

The equation for the line would be
x+29
I believe the midpoint is ( 2 1/2 , 3 1/2 )