Answer:
B. 10/91
Step-by-step explanation:
Total passwords:
16C4 × 4!
43680
Passwords with exactly one digit:
6C3 × 10C1 × 4!
4800
Probability
4800/43680
10/91
9 x 6 = 54
54 - 4 = 50
50 + 5 = 55
i think, your question isn't very clear
I would say that the tree is 12 feet high.
And to find out the answer you could use the quadratic formula :)
5/4 - 2/3 =
15/12 - 8/12 =
7/12 of a mile left <==
Answer: 49
Step-by-step explanation: