Question 16the cost of dvd players has dropped by $20 each year. if a dvd player cost $189 four years ago, how much does it cost today? $109.00$269.00$30.24$77.41

-20 each year

how many years? 4

-20 times number of years=drop

-20 times 4=-80

dropped by -80 total

if costs 189 before, now it is 189-80=109

costs $109.00 today

a and c

step-by-step explanation: