A fisherman can row upstream at 1 mph and downstream at 4mph he started rowing upstream until he got tired and then rowed downstream to his starting point how far did the fisherman row if the entire trip took 5 hours? How would you solve this in steps?

For f(x)=2x+1 and g(x)= x^2 -7, find (f•g)(x)

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.

The ratio of men to women working for a company is 4 to 5 . if there are 90 women working for the company, what is the total number of employees?