This is an exponential growth problem. Let's write the equation for exponential growth.

Where,
- P is the final amount
is the initial amount- r is the rate at which increasing
- n is the time
From the problem, we know initial number of views,
, is 25. Rate of increase, r, is 0.18. Time, n, is 4 weeks. Plugging in these values in the equation and solving for P will give us the number of views expected in four weeks time.

Rounding to nearest whole number, it is 48.
ANSWER: 48