tolong di jawab nomor 9...

Jawab :
(5/2 x 4/1) + (25/100 x 4/5)
(20/2) + (100/500)
10 + 1/5
10 1/5

Jawabannya D

=(2,5:0,25)+(0,25x0,8)
=10+0,2
=10,2