Find the slope of the line described by the equation 4x + 3x = 24

The data in the table represent the height of an object over time. which model best represents the data? height of an object time (seconds) height (feet) 05 1 50 2 70 3 48 quadratic, because the height of the object increases or decreases with a multiplicative rate of change quadratic, because the height increases and then decreases exponential, because the height of the object increases or decreases with a multiplicative rate of change exponential, because the height increases and then decreases

What is the slope of the line that contains the points (-2,1) and (0,-3)

How many sides does a regular polygon have if each exterior angle measure is 45 degrees explain your answer, i really don't understand this.