Answer:
50%
Step-by-step explanation:
Because you can get either 1 and 5 which is 6 or 10 and 1 whoch is 11 but the other two will give you 15+
Answer; It would be 15 out of 36
So you have $1,$5,$10, and $20 so if you add them all up you get sixteen and the probability that the total value of the two bills is at least $15 then the chance would be $15 out of $36.
the correct answer would be A. 8^-12
8^2 /8^16 = 1/8^14 = 2.27373*10^-13
8^-12 = 1.45519*10^-11
which are equal so answer is A