The second one that you did
Its the last one, the shapes but be polygons.
Perimeter of rectangle:2(length+width):2(13+7)=40
Perimeter of square:4(length of one side):4(x)=40
X=10
No, it is not a function.
Since all the lines have been drawn in the grid line do not have any connection between them even a point in common.
I hope this has been useful for you.
Answer: 26 gallons.
390÷15
15 can go into 39 only 2 times.
39-30 is 9
15 can go into 90 only 6 times.
90-90 is 0.
