Tolong yg no 25 26 dan 27

26.) 20×15=300kg=300.000g
300.000÷750=400

25. (-15)°C + 32°C
= 32 – 15
= 17°C (a)
26. 20 kantong x 15 kg = 300 kg
300 kg : 750 gram / 300.000 gram : 750 gram
= 400 (A)
27. 5 1/2 – 2 4/6 + 5/6
= 11/2 – 16/6 + 5/6
= 66/12 – 32/12 + 10/12
= 44/12 ⇒ 11/3 ⇒ 3 1/2