Has the marrying age of a man changed over the years? the united states bureau of the census takes a formal count of everyone in the u. s. every 10 years and has provided the following data that gives the median age of an american man at the time of his first marriage.
year
1910
1920
1930
1940
1950
1960
1970
1980
1990
2000
median age
25.1
24.6
24.3
24.3
22.8
22.8
23.2
24.7
26.1
26.8
is the average rate of change zero over any ten-year period? if so, when?

Quick! a survey of 57 customers was taken at a bookstore regarding the types of books purchased. the survey found that 33 customers purchased mysteries, 25 purchased science fiction, 18 purchased romance novels, 12 purchased mysteries and science fiction, 9 purchased mysteries and romance novels, 6 purchased science fiction and romance novels, and 2 purchased all three types of books. a) how many of the customers surveyed purchased only mysteries? b) how many purchased mysteries and science fiction, but not romance novels? c) how many purchased mysteries or science fiction? d) how many purchased mysteries or science fiction, but not romance novels? e) how many purchased exactly two types of books?

Agroup of randomly selected apple valley high school students were asked to pick their favorite gym class. the table below shows the results of the survey. there are 528 students at apple valley high school. gym class number of students racquet sports 1 team sports 9 track and field 17 bowling 13 based on the data, what is the most reasonable estimate for the number of students at apple valley high school whose favorite gym class is bowling? choose 1 answer a. 9 b. 13 c. 119 d. 172

How many verticies does a triangular prims have