Please someone help me with this problem either on the app or on here Use this table for the next two problems.
Colony Date admitted to the USA
Delaware Dec. 7, 1787
Pennsylvania Dec. 12, 1787
New Jersey Dec. 18, 1787
Georgia Jan. 2, 1788
Connecticut Jan. 9, 1788
Massachusetts Feb. 6, 1788
Maryland Apr. 28, 1788
South Carolina May 23, 1788
New Hampshire June 21, 1788
Virginia June 25, 1788
New York July 26, 1788
North Carolina Nov. 21, 1789
Rhode Island May 29, 1790

8. Use roster notation to list the elements of the set A = {x: x was admitted to the USA prior to Jan 1, 1788}

9. B = {x: x was admitted in June or July} Find |B|

Please show me your work and no links. This is urgent