Question
Fill in the blanks.
73, 77, 81, (a) _____ , (b) _____ , 93, 97
2 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

Fill in the blanks.
73, 77, 81, (a) _____ , (b) _____ , 93, 97