Aparking lot had 80 cars. of those 80 cars, 25% were blue, 20 were black, and the rest were silver. what percent of the cars were silver?

In a school 2/3 of the students study a language of those who study a language 2/5 study french

Henry is an avid reader, he devours 90 pages in half an hour how many pages has henry read per minute?

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.