Raul has 50 coupon books to sell. he must sell at least 10 coupon books to win a prize. the amount of money raul makes from selling x coupon books is represented by a function. f(x)=20xf(x)=20x what is the practical domain of the function? all integers from 10 to 50, inclusive all multiples of 20 between 0 and 1000, inclusive all real numbers all integers from 0 to 50, inclusive

This question awards 100 ! i really don’t want to fail i will also mark you !

Me max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a) the median of max’s data is 250 b) more than half of the data points max recorded were 177 centimeters. c) a data point chosen at random is as likely to be above the mean as it is to be below the mean. d) every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.

Non-euclidean geometry was discovered when, in seeking cleaner alternatives to the fifth postulate, it was found that the negation could also be true a. true b.false