(a) In state A, if the temperature is 50 degrees Fahrenheit, what is the temperature in Celsius? (b) If the temperature in state B is 56 degrees Celsius, what is the temperature in Fahrenheit? ? (a) 50?F=?C (Type an integer or a decimal.)The weight of diamonds and other precious gemstones is given in carats, where 1 carat =200mg. Using the conversion 1 kg=2.2lbs, estimate the weight in pounds of a 3102 carat diamond. The weight is pound(s). (Type an integer or a decimal.)Metric countries rate the fuel efficiency of a car by the number of liters of gasoline required to drive 100 kilometers. If a car takes 13 liters per 100 kilometers, what is its efficiency in miles per gallon? Use the conversions ggal=3.7854 L and 1 mile =1.6 km. The efficiency in miles per gallon is (Round to one decimal place as needed.)