The correct answer is Sometimes
Answer:
d. 14:11
Step-by-step explanation:
There is a 7 in 10 chance that Mike does his homework today and a 8 in 10 chance he will do it tomorrow, the probability that he will do it both today and tomorrow is:

The odds are the probability that an event occurs over the probability that it does not occur:

The odds that he will do it both today and tomorrow are 14:11.
Irrational
the number is endless in its digits (much like pi) and thus is irrational
ans is option c
as q + d = 12 as total coins are 12
25q + 10d = 195
because 1 quarter has 25 cents and 1 dime has 10 cents