The ratio of incorrect to correct answers on marco's math test was 4 to 6. if marco missed 39 problems, how many did he get correct. answer quickly, i have math 4th period which is actually next period!

Ineed to know the answer to this algebra question.

Needmax 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.

98 point question what is the record for most points in one