Por favor ayudenme con mi tarea de mates no entiendo nada :(

F(x)=x/2-2 and g(x)=2x^2+x-3 find (f+g)(x)

Drag the tiles to the boxes to form correct pairs. not all tiles will be used. match each set of vertices with the type of quadrilateral they form.

Aculture started with 4,000 bacteria. after 5 hours, it grew to 5,200 bacteria. predict how many bacteria will be present after 19 hours. round your answer to the nearest whole number.