Answer:
39
Step-by-step explanation:
1. A rational number is a number that can be written as a fraction.
For example: 1/3, 5/7, 90/666, etc
Note: Any integer can be written as a fraction.
Look:
5 = 5/1 = rational
-14 = -14/1 = rational
2. There is no difference between a rational and integer.

Step-by-step explanation:
Probability=
Probability for a randomly chosen girl to be senior=
Probability for a randomly chosen girl to be senior=
Probability for a randomly chosen boy to be senior=
Probability for a randomly chosen girl to be senior=
For two independent events,
Probability for both event 1 and event 2 to take place=
Since choosing boys and girls is independent,
Probability for both boy an girl chosen to be senior=
Probability for both boy and girl chosen to be senior=
So,required probability is 
Mia tossed a penny,a nickel and a dime all possible outcomes of H is the answer C.
Step-by-step explanation:
- The two possible outcomes for penny,nickel and dime is H & T.
- H is for head T is for tail.
- Let A {HHH,HHT,HTH,HTT,THH,THT,TTH,TTT}
- Tossing a fair coin will give the above result.
- S is the called the n number of outcomes that are available for a set.
- Total outcome of Sample space 8.
- The three diagram is like a game theory it exploits different outcome.