What are the odds against getting three tails when you flip three coins? A. 1:1
B. 1:7
C. 1:8
D. 7:1

1:7

Step-by-step explanation:

The number of possible outcomes is 2*2*2 = 8

The number of ways of getting 3 tails is 1

The odds against - the ratio of the number of ways that an outcome cannot occur compared to in how many ways it can occur.

ways it can occur -1

ways it cannot occur - 8-1 = 7

1:7

i believe the answer is the polygon, heptagon.