The volume of the box when it's filled to 3 inches deep is 12×8×3 = 288 in³
The box is filled up to 1.5 inches from the top, that means the box is filled only
3-1.5 = 1.5 inches deep
The volume of the box when it's filled to 1.5 inches deep is 12×8×1.5 = 144 in³
The number of flours saved is 288 - 144 = 144 in³
The second one it's double.
36/7+4
36/11
36÷11=3.27272727.... Repeating
You would want to subtract 18 from 45. Your answer would be y=27.
Temperature will be plotted on the y-axis