How old is I? Same as yesterday, bored so I wanna see if anyone can guess right. Free points(if you know my age from past conversations, don't guess, but you can take free points)

How many solutions does the nonlinear system of equations graphed below have?

Which of the following will form the composite function?

Whoever gets this right gets the ! the half life of a soul smelling substance is 4 years. if you have 8 oz of this strange substance, how much of it will you have after 20 years? show work.