Express the total surface area (including BOTH inside and outside) of the open box as a function of {{MATH_53}}. {{MATH_54}} Simplify the expression above. {{MATH_55}} {{CMD_56}} {{CMD_57}} As {{MATH_58}} increases from {{MATH_59}} to {{MATH_60}}, the total surface area of the box changes by {{MATH_61}} So as {{MATH_62}} increases from {{MATH_63}} to {{MATH_64}}, the surface areas decreases by {{MATH_65}}.