Omar ordered his sister a birthday card from a company that randomly selects a card from their inventory. the company has 21 total cards in inventory. 14 of those cards are birthday cards. what is p(not a birthday card)

  or 33.33%

Step-by-step explanation:

Given: The total number of cards in inventory = 21

The number of birthday cards = 14

Then the number of cards which are not a birthday card = 21-14=7

If company that randomly selects a card from their inventory, then the probability of getting a card which is not a birthday card will be :-

In percent,

an

y = 6x -3y -12

y +3y +12 = 6x

=> . x = { 2y / 3 +2 } this is equation of line in terms of x

=> . if line meets the x-axis the co-ordinates of meeting point would be ( x , 0 )

=> . x = 2 ( 0 ) / 3 + 2

=> . x = 2

so, the point is ( 2 , 0 )