A liter is 0.264 gallons so 13 * 0.264 = 3.432 and round it up it is 3.4

At first Divide the figure into two rectangles, I and Il
Area of figure l is ~
Area of figure ll is ~
Area of whole figure = Area ( l + ll )
that is equal to ~
2y - 3x = 4
2y = 3x + 4
y = 3/2*x + 2
y = kx + b ==>
k = 3/2 = 1,5
17-2(6-4)(7-3)-7
17-2(2)(4)-7
17-2(8)-7
17-16-7
1-7
-6