Please help! And Please please please EXPlAIN your answer!!!!

Suppose T(t) = 25 sin( 275 (t - 7) ) + 68 is the temperature (in degrees Fahrenheit) at time t, where t is measured in hours after midnight on Sunday. You finish painting the exterior door to your house at 5 PM on Monday. The paint information states that 48 hours of 73F drying time is required; i.e., you can only count time periods when the temperature is at least 73F. When will the door be dry? (Round your answer to the nearest hour.) ---Select--- v ---Select--- v ---Select--- Additional Materials Reading Submit