Solution :
Given that there is only one set which can contain all the five correct answers. While guessing that I am likely to choose only one sequence of the answers as another, then the probability of getting all the five answers correct is given by :
Given : X
binomial 
P (X = 5)

= 0.00412
Thus the probability is 0.00412
Answer:
9
Step-by-step explanation:
Firstly you can simplify the exponents shown below:

Simply add exponents when multiplying like shown above.
Answer:
21
Step-by-step explanation:
a,a+2,..
4(a+2)=29+3a
4a+8=29+3a
4a-3a=29-8
a=21