The number of visitors P to a website in a given week over a 1-year period is given by _ P(t)=124 + (t- 90) e 002'. where t is the week and 1 s t s 52. '- 3) Over what interval of time during the 1-year period is the number of visitors decreasing? 5 1)) Over what interval of time during the 1-year period is the number of visitors'increasing? ' c) Find the critical point. and interpret its meaning. a. a) The number of visitors is decreasing over the interval D (Simplify your answer. Type integers or decimals rounded to three decimal places as needed. Type your answer in interval notation.)