2.20•4=8.80 so if you subtract that by 24.40 you get 15.60 and if you divide that by 4 you get 3.90 for each pendant. If you wanna check it you can add 3.90 and 2.20 together and multiply it by 4 and you get 24.40
This doesn't contradict Rolle's theorem because does not exists. In other words, is not differentiable on (-27, 27), so the conditions of Rolle's theorem are not met. (Looks like that would be the last option, or the second to last option if the last one is "Nothing can be concluded")