9. If a train travels 270 mi. in 9 hr., what is its average speed? 20 mph
O
30 mph
d
40 mph
50 mph

What is 140% of 25? because i need

Marco states that 7.696696669…… is a rational number because it is a repeating decimal. is he correct? justify your answer.

Given a normal distribution with µ =50 and σ =4, what is the probability that 5% of the values are less than what x values? between what two x values (symmetrically distributed around the mean) are 95 % of the values? instructions: show all your work as to how you have reached your answer. don’t simply state the results. show graphs where necessary.