At Jaylen’s school, students must choose a language, an elective, and a science class. Their options are listed in the table. Course Offerings
Language
Elective
Science
Chinese
Art
Astronomy
French
Band
Biology
German
Choir
Chemistry
Spanish
Computers
Physics

How many different combinations are possible?

Need on this geometry question. explain how you did it.

Given a: b and b: c, find a: b: c. write the ratio in simplest form. a: b=6: 10 and b: c=21: 33

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.