Andrew's rotation maps point m(9, -1) to m'(-9, 1). which describes the rotation?
180° rotation
270° clockwise rotation
90° counterclockwise rotation
90° clockwise rotation

180° rotation

Step-by-step explanation:

sign changes when we rotate a point to 180 degrees. so 9 became -9 and -1 became 1, which gave us the clue that it's 180° rotation

-362

step-by-step explanation:

(12)(4)+2(12)-34(12)+2(12)-3

  \/         \/         \/         \/

  48 +   24 -   408 + 24 - 3

      \   /               \   /

          72     -     432 - 3 = -363

b.

step-by-step explanation:

i just know