In the summer, humidity interacts with the outdoor temperature, making a person feel hotter due to a reduced heat loss from the skin caused by higher humidity. the temperature-humidity index, th, is what the temperature would have to be with no humidity in order to give the same heat effect. one index often used is given by th = 1.98t - 1.09(1 - h)(t - 58) - 56.9, where t is the air temperature, in degrees fahrenheit, and h is the relative humidity, expressed as a decimal. find the temperature-humidity index if t = 82 degree and h = 61%. the temperature-humidity index at 82 degree and 61% humidity is degree. (round to one decimal place as needed.)