Answer:
she would practice 5760 mins for seven days
Explanation:
ok so if she practices every day from 45 min.
day one: 45
day two: 45 · 2 = 90
day three: 90 ·2 = 180
day three: 180 · 2 = 360
day four: 360 · 2 = 720
day five: 720 · 2 = 1440
day six: 1440 · 2 =2880
day seven: 2880 ·2 = 5760
so that means at the send of the seven day she would have practice 5760 mins. If she keeps the pattern going through out the seven days.