(Solved): (a) In state A, if the temperature is 50 degrees Fahrenheit, what is the temperature in Celsius? (b ...

(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? \( \cdots \) (a) \( 50^{\circ} \mathrm{F}={ }^{\circ} \mathrm{C} \) (Type an integer or a decimal.) The weight of diamonds and other precious gemstones is given in carats, where 1 carat \( =200 \mathrm{mg} \). Using the conversion \( 1 \mathrm{~kg}=2.2 \mathrm{lbs} \), 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 \( \mathrm{ggal}=3.7854 \mathrm{~L} \) and 1 mile \( =1.6 \mathrm{~km} \). The efficiency in miles per gallon is (Round to one decimal place as needed.)