Ihave an assignment due and number 85 is confusing can someone explain?

expand the numbers inside the root,

solve and bring out what can be taken out as a whole number,

then narrow everything down to one number,

which would then be ur answer

85. 2√48y^5 - 3y √12y³

=> 2√2 x 2 x 2 x 2 x 3  x y x y x y x y x y - 3y√2 x 2 x 3 x y x y x y

=> 2 x 2 x 2 x y x y√3y - 3y x 2y√ 3y

=>8y²√3y - 6y²√3y

=>2y²√3y

the answer is b. 60. each interior angle in 120, so the exterior angle must be 60 in order to add up to 180

step-by-step explanation:

sorry man i accidentally pressed yes my bad

step-by-step explanation: