Answer:
Attached
Explanation:
The equation given is;
3y-7=0
3y=7
y=7/3
Using a graph tool to plot the equation , the graph will be as attached;
No you should not just walk out of class.
18 boxes of nails weighs 49.5 kg
So one box weighs 49.5/18=2.75 kg
Therefore each box weighs 2.75 kg
That means each box weighs 2 wholes and 3 by 4