A studio is buying 4 mp3 players for $129.55 each. estimate the least number of $ 100 bills needed to buy the mp3 players.

table 1

step-by-step explanation:

1-16

2-32

4-64

8-128

all multiples of 16

t = 3

step-by-step explanation:

put t = 3 in this expression :

(3²-1)(3²-2)(3² - 3)(3² - 4) = 8×7×6×5 = 56×30 = 1680

the image is given below

since the options are not given so we draw it from the equation

the given equation is

y = (x-1) (x+4)

y = y² + 3x - 4

the above equation is a quadratic equation which will have two roots. if we draw the graph for it, it will look like this