Tolong jawab soal soal ini ya kak.please

1.
0,35 + 1 3/4 - 1,8
= 35/100 + 175/100 + 180/ 100
= 30/100
= 0,3 kg
2. 20/100 X 350000
= 70000
H bv= 35000- 70000
= 80000