Michael is packing his bags for his vacation. He has 555 unique shirts, but only 444 fit in his bag. How many different groups of 444 shirts can he take?

provide more details to solve it

step-by-step explanation:

step-by-step explanation:

total income = price of one ticket   *   number of tickets sold

  y                 =     4                                   x

so the equation is y=4x     with x≥0   because number of tickets sold can not be negative

thus the equation is a semi -line with an end point at

(0,0)

passing through :

x=1     y=4(1) = 4   so through (1,4)