In a school, on the first day 1 student was absent, on the second day 2 students were absent, on the third day 4 students were absent. On the fourth day 8 students were absent if same patterncontinued till 6th day, how many students would be absent on the 6th day?

The sat and act tests use very different grading scales. the sat math scores follow a normal distribution with mean 518 and standard deviation of 118. the act math scores follow a normal distribution with mean 20.7 and standard deviation of 5. suppose regan scores a 754 on the math portion of the sat. how much would her sister veronica need to score on the math portion of the act to meet or beat regan's score?