Omar ordered his sister a birthday card from a company that randomly selects a card from their inventory. the company has 212121 total cards in inventory. 141414 of those cards are birthday cards. what is \text{p(not a birthday card})p(not a birthday card)start text, p, left parenthesis, n, o, t, space, a, space, b, i, r, t, h, d, a, y, space, c, a, r, d, end text, right parenthesis?
