Answer:
The answer is C 8 2/5 im pretty sure.
First you need to fix the equation in order to graph.
x + y = 3
Subtract x from both sides.
y = -1x + 3
Now graph.
(Whenever there is a variable by itself there is always a 1 in front of it.)
There is a site called desmos that can help↓
If Nate paints the wall in 4 hours, it means that he can paint 1/4 of the wall every hour.
Similarly, if Jill paints the wall in 7 hours, it means that he can paint 1/7 of the wall in one hour.
So, together, they paint the following fraction of the wall in one hour:
.
At this rate, they need 28/11 hours to paint the whole wall, in fact, after that amount of time they paint

i.e. the whole wall
Answer:
B
Step-by-step explanation:
3.4 x -3.4= -11.56
3.4 X 3.4 = 11.56 YES
-3.4 X -3.4 = 11.56
-3.4 X 3.4 = -11.56