A dog boarding facility charges daily based on a dog’s weight. If the dog weighs under 15 lbs, the rate is $30. If the dog is between 15 and 50 lbs, it is $35. If the dog is 50lbs or more, the charge is $35 plus $3 for each additional 5 lbs over 50 lbs. Which of the following best defines the quantity and scale for the x-axis for a piecewise linear graph of the fee structure?(1 point) Responses weight; 10 weight; 10 amount; 1 amount; 1 weight; 1 weight; 1 amount; 10

The best definition for the x-axis in this case is "weight" with a scale of 10.