In 1987, 522 comma 000 people worked in the air transportation industry. in 2003, the number was 480 comma 000. (a) find a linear equation giving the number of employees in the air transportation industry in terms of x, the number of years since 1987. (b) assuming the equation remains valid in the future, in what year will there be 440 comma 000 employees of the air transportation industry?

Jeffery conducted a survey in his school and found that 30 of the 50 eighth grade students' favorite subject is mathematics. based on the results, jeffery concluded that out of the 200 students in his school, 120 students' favorite subject is mathematics. select the statement that is true about jeffery's conclusion. a. jeffery's conclusion is not valid because the sample was biased since only 200 students were surveyed. b. jeffery's conclusion is valid because the sample was random since all of the students were eighth grade students. c. jeffery's conclusion is valid because the sample was random. d. jeffery's conclusion is not valid because the sample was biased since all of the students were eighth grade students.

Asquare parking lot has 6,400 square meters what is the length in meters

You eat 8 strawberries and your friend eats 12 strawberries from a bowl. there are 20 strawberries left. which equation and solution give the original number of strawberries?