Answer:
The answer to this question is B
The dude on top of me is correct
45mins ÷ 15pages = 3
so she reads 3pages per minute
3pages × 60minutes = 180
she read 180pages in 60minutes
hope this helps
Flipping two coins gives four possibilities: HH, HT, TH, TT
So P(TT)=1/4
So we'd expect a quarter of the trials to be two tails.

trials expected to be two tails.
Answer:
2/3
Step-by-step explanation:
17/21-1/7
17/21-3/21
14/21=2/3