Phrasal verbs

Is the verb "let down" separable or inseparable?

Is the verb "call off" separable or inseparable?

Is the verb "back up" separable or inseparable?

Is the verb "throw away" separable or inseparable?

Is the verb "come across" separable or inseparable?

Is the verb "take up" separable or inseparable?

Is the verb "put off" separable or inseparable?

Is the verb "get along" separable or inseparable?

Is the verb "get over" separable or inseparable?

Is the verb "look after" separable or inseparable?

Is the verb "hang out" separable or inseparable?

Is the verb "pick out" separable or inseparable?