Graph and show work. Please. Helping a grandchild and I need to explain.

W-16=-12 solve each one step equation plz

15 points what is the end behavior of this graph? & what is the asymptote of this graph?

The value, v, of kalani’s stock investments over a time period, x, can be determined using the equation v=750(0.80)^-x. what is the rate of increase or decrease associated with this account? 20% decrease 20% increase 25% decrease 25% increase