Can Inverter support crock pot and refrigerator

The dometic fridge, if on electric will require all the output of the inverter, If on propane it only eats direct from the battery, and the propane tank.. (Assumes it is an AC/Propane model)

The crock pot.. Wattage varies with make and model so turn it over and look at it, add 10% to the wattage and that will tell you the minimum size of inverter, 25 percent is safer. But odds are good it will work.