I know why but I can’t explain it and it won’t except my explanation someone help!

In simplified exponential notation, the expression a^2•a^-3•a 1/a 0

The speed of a falling object increases at a constant rate as time increases since the object was dropped. which graph could represent the relationship betweent time in seconds, and s, speed in meters per second? speed of a falling object object over time

The vertex of this parabola is at (-2,-3). when the x-value is -1, the y-value is -5. what is the coefficient of the squared expression in the parabola's equation?