Write the final results for the following TypeLang programs if it typechecks. If it does not typecheck then, explain why it is ill-typed (note: we are asking the justification, not the interpreter output if a program is ill-typed). (3 pt) (let ((x : Ref num (ref : num 42)) (w : num ( 300 42))) (let ((y : Ref num x) (z : num ( (deref x) w))) (set! y 541)))

Which of these options are the correct sequence of actions for content to be copied and pasted? select content, click the copy button, click the paste button, and move the insertion point to where the content needs to be inserted. click the copy button, select the content, move the insertion point to where the content needs to be inserted, and click the paste button. select the content, click the copy button, move the insertion point to where the content needs to be inserted, and click the paste button. select the content, move the insertion point to where the content needs to be inserted, click the copy button, and click the paste button.