Ms. gleason makes a purchase at staples. ms. klingle spends 4.35 times more than ms. gleason. if ms. klingle spent $87, how much did ms. gleason spend? write and solve an equation

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

Anyone know? will mark brainliest if correct

Which expressions are equivalent to k/2 choose 2 answers: a k-2 b 2/k c 1/2k d k/2 e k+k