ASAP I GIVE 20 POINTS! HELP ME ANSWER THESE QUESTIONS ASAP
THE ANSWERS COULD EITHER BE COMPOUND SUBJECT, COMPOUND VERB, OR BOTH

Ahigh definition tv cost $800 with a down payment of 2/5 of the cost. how much is left to pay, in dollars after the down payment has been made?

Find the zero function by factoring (try to show work) h(x)=-x^2-6x-9

What is the rate of change of a line that passes through (2,-5) and (6,-2)?