PLEASE HELP SOMEONE WITH THIS MATH I AM NOT VERY GOOD AT MATH SO PLEASE HELP ME THIS IS DUE SOON HELP PWEASE, THNAK YOU FOR WHOEVER HELP ME

Simplify 5 square root of 7 end root plus 12 square root of 6 end root minus 10 square root of 7 end root minus 5 square root of 6 . (1 point) 5 square root of 14 end root minus 7 square root of 12 5 square root of 7 end root minus 7 square root of 6 7 square root of 12 end root minus 5 square root of 14 7 square root of 6 end root minus 5 square root of 7

The estimated number of people to attend the last bengals game of the season was 2000. the actual number of fans attending was 1200. by what percent did the estimate differ from the actual?

If you could answer these your a life saver