She has about 240 minutes to get ready. There is 60 minutes in each hour and since she woke up at 7 she only has 4 hours to get ready. So you multiply 60 time 4 to get the minutes she have to get ready
You are correct, it would be a reflection across the y-axis. I am great at visualizing but for those who are not (Not saying you) all they have to do is cut out a parallelogram and mimic the movements.
