Answer:
67.02
Step-by-step explanation:
There are nine possible combinations as follows: bb, bc, bt, cb, cc, ct, tb, tc, tt, each having a probability of 1/9. The four combinations with a cab exactly one time are: bc, cb, ct, tc. Therefore the probability that she'll use a cab exactly one time is: 4/9.
First divide 3.5 by 2 which equals 1.75. Then do 1.75*3 which equals 5.25. So he drinks 5.25 liters in one hour.
Sally is 6 and Tomas is 3 so
6 +(3×2)
and 6-3
You out 1 in for A and 12 in for C 4(1)(12) = 48