5 days before is Sunday which is the "day before yesterday". 
That means yesterday was Monday, and today is Tuesday. 
Therefore tomorrow will be Wednesday.

You shouldn't do this!

\(F=\dfrac{1}{1+\dfrac{1}{2+\dfrac{1}{3}}}=\dfrac{1}{1+\dfrac{1}{\dfrac{7}{3}}}=\dfrac{1}{1+\dfrac{3}{7}}=\dfrac{1}{\dfrac{10}{7}}=\dfrac{7}{10}=0.7\)

It is: \(32\times162=5184\) and \(72\times72=5184\)

1 minute 12 seconds = 1.2 minutes = 0.02 hours

In 1 hour, the car can travel:

\(1\div0.02=50\) (miles)

Answer: 50 miles

Each multiple of 5, increased by 2, ends either in 2 or 7. Each multiple of 6, increased by 3, must be an odd number. Then the only possibilities for the class size are: 7, 17, 27, 37,… . Divide each by 6. The first number that has a remainder of 3 is the required number. That number is 27. 

I think it is Wednesday.