Write an equivalent expression: 5.2x+8+2.1x-3
if you get it wrong its ok :)

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

What is the length of the missing leg in this right triangle? 18 mm 24 mm 26 mm 32 mm

X² + 4y² = 36 the major axis runs along: a) y=4x b) x-axis c) y-axis