Julie went to the post office and bought both $0.41 stamps and $0.26 postcards. she spent $51.40. the number of stamps was 20 more than twice the number of postcards. how many of each did she buy?

If the wwight of a package is multiplied by 7/10 the result is 65.8 find the weight of the package

Someone answer asap for ! 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.

Common binomial factor of 6x(3x+7)+5(3x+7)