Denise goes from Whitefield to Manchester by train.
Denise takes 18 minutes to get from her house to the train station in Whitefield.
She takes 22 minutes to get from the train station in Manchester to work.
Denise has to get to work by 9 a.m.
She leaves her house at 7.45 a.m.
(b) Does Denise get to work by 9 a.m?
You must show all your working.