14. The rainfall R(t) (in mm) over the course of a year in Bali, Indonesia as a function of time t (in days) can be modeled by a sinusoidal expression of the form a · sin(b · t) + d. At t = 0, in mid-April, the expected daily rainfall is 2.3 mm, which is the average value throughout the year. One-quarter of the year later, at t = 91.25, the rainfall is at its minimum, at an expected daily value of 1.4 mm. Find R(t), where b should be in radians and determine the first time the rainfall is 3 mm. Round your final answer to the nearest whole day.