What is the domain and range for the function below?

1/square root x+4

What are linear equations? could'ya explain too me, ? ! and how do you see what graph is a proportional relationship?

What is the approximate difference in tenths between √12 and √15?

David and alton are training for a race. they spend 35 minutes stretching and then go on a 5 mile practice run. david runs at a pace of 7 min/mile. alton runs at a pace of 8 min/mile. write an equation for each runner that shows the total length of their workout. then solve each equation showing your work