According to Rolle's Theorem, the rate of change of the cost must be 0 for some order size in the interval (2, 15). Find that order size. (Round your answer to the nearest whole number.)

Idon’t know what the answer is i wish i could

The great thing about this problem is they give you everything you need to solve it easily. so the expression is: 12h+30w12h+30wand so everywhere you have an “h” you place 66. and everywhere you have a “w” you place 33. then the expression will look like this: 12(66)+30(33)12(66)+30(33)from here you multiply and then add. getting the following of: $785,862hope this