How would you solve the below?

Suppose that a random sample of 150 columnists is selected from a large newspaper company and that the number of words they write in a day and the amount of time they spend browsing social networking sites in a day is recorded. A regression of the number of words they write in a day (W) on the number of minutes they spend browsing social networking sites in a day (S) yields:

= 572.45 - 0.64 x S

Suppose a columnist spends 88 minutes browsing social networking sites.

The regression's prediction of the number of words the columnist would write that day is _____?

Suppose the same columnist decides to reduce the time spent on browsing social networking sites by 40 minutes

On average, the predicted number of words the columnist can write that day would [Increase/Decrease] by _____?