Help please. I don’t understand the unit that we are on.

Konoe Ayatsuki Mercury (コノエ＝アヤツキ＝マーキュリー Konoe Ayatsuki Mākyurī), more commonly known as Nine (ナイン Nain) She is a playable character in BlazBlue: Centralfiction known as Nine the Phantom (ナイン＝ザ＝ファントム Nain za Fantomu)

Step-by-step explanation:

7! = 7×6×5×4×3×2

3! = 3× 2

as 7! is multiple of 3! because 7! contains 3! that is 3× 2 as factor

so 7! /(3! ) = 7× 6× 5× 4

= 42 × 20

= 840

its b) 840✌✌✌

dhruv⭐

according to the triangle sum theorem, all the angles in a triangle must add up to 180 degrees. if we know one angle is already 90, we do 180-90=90. the other 2 angles must add up to 90, exactly.

step-by-step explanation: