1: B
because a triangle angles all have to add up to 180
Answer: 2000 tickets were sold
Step-by-step explanation:
8000 divided by 40 percent is 200
All socks together: 13
Black socks: 3
Probability to pick out black socks: 3/13
After one pick out (You picked out a pair of black socks):
Probability to pick out black socks: 2/12
Multiply them:
2/12 * 3/13 = 1/26 ≈ 0,038
