Seven more than twice a number is equal to 25. Which of the following is the number? Use algebra to find your answer and show your work.

(1) 7
(3) 12
(2) 9
(4) 15

ANY HELP IS APPRRECATED

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

Idon’t understand this.. will someone ? will mark brainliest along with 20 points.

Which expression is not a polynomial?