求助12月JJ几题,快要考试啦,大家帮忙谢谢!

麻烦大家了,急用!数学烂死了

53. In the store of a car dealer, less than 10 cars are equiped with fog light, and 40% of the cars have  **window, Is the dealer has more car with fog light than those with **window?

(1)80% cars have fog light and window

(2)52 cars have fog light or window or both

这题不知道怎么做!

55. X<Y<Z,U<T，问X<U<Y<T<Z是否成立？

(1)x+u=y-u

(2)z-t=y+t

这题我解出来是E,给的答案也是,对吗?