September 2018 1 20 Report
A. titik a ( 3,y )terletak pd garis yg melalui titik K (-2,10) dan L (1,1). nilai y adlh ?

b. 2 lusin mainan = 720rb
4 buah mainan rusak.
mainan yg masih bagus dijual dgn harga 33rb per buah.
brp presentase kerugian?

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