State wether each function is a linear function. write yes or no f(x) =x+12 / 5

Answer asap ! the shortest path from point a to point b goes through a pond. to avoid the pond, you must walk straight 34 meters along one edge of the pond, then take a 90 degree turn, and again walk straight 41 meters along another edge of the pond to reach point b. about how many meters would be saved if it were possible to walk through the pond? a. 11 m b. 20 m c. 30.45 m d. 21.73 m

You give a $4 tip for a meal that cost $22. approximately what percent of the bill was your tip?

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?