In 2016, approximately
4.7 million Advanced Placement (AP) exams were
taken in the United States. A total of 40 thousand
exams was taken in Chinese, French, and German
Language and Culture. The number of Chinese exams
taken was 8 thousand more than the number of
German exams taken. The number of French exams
taken was 4 thousand more than the sum of the number
of Chinese and German exams. Find the number of
exams taken in each language.

Lems1. the following data set represents the scores on intelligence quotient(iq) examinations of 40 sixth-grade students at a particular school: 114, 122, 103, 118, 99, 105, 134, 125, 117, 106, 109, 104, 111, 127,133, 111, 117, 103, 120, 98, 100, 130, 141, 119, 128, 106, 109, 115,113, 121, 100, 130, 125, 117, 119, 113, 104, 108, 110, 102(a) present this data set in a frequency histogram.(b) which class interval contains the greatest number of data values? (c) is there a roughly equal number of data in each class interval? (d) does the histogram appear to be approximately symmetric? if so, about which interval is it approximately symmetric?

Does anyone know how to do geometryme with this problem

If a and −a are numbers on the number line, which expression must give the distance between them? a) 0 b) a c) |2a| d) |a|