4people can trim a hedge in 1 hour , how long would it take 3?

3x + 4y = 5 x- 3y = -7 solve by substitution

What’s the range cuz i can’t find it?

Which best describes the function on the graph? direct variation; k = −2 direct variation; k = -1/2 inverse variation; k = −2 inverse variation; k = -1/2