The main idea of the reading is that people want scooters banned for being dangerous nuiscances. Which option is a detail used to support this idea Scooters are expensive

Scooters have a short battery life

Hospital are training doctors to treat scooter realists injuries

Scooters on the side walk collide with walkers

Scooters on the sidewalk collide with walkers

The slope of a linear equation is equal to the change in the value of the dependent variable divided by the change in the value of the independent variable. in this problem, the dependent variable is the profit while the independent variable is the worker's average pay. if the profit is said to increase by 1500 when worker's average pay decrease by 450, the slope is equal to 1500/(-450)=-3.33