tolong jawab kak no 7,8,9,10 makasih

No. 7
20/40 × 100% = 50%

No. 8
Kedelai = 30/20 × 50 = 75 kuintal
Jagung = 25/20 × 50 = 62.5 kuintal
Padi = 25/20 × 50 = 62.5 kuintal

No. 9
a) 3,5
b) 5
c) 6
d) pada bulan 3 ke bulan 4

No. 10
a) 63/360 × 400 = 70 kuintal
b) 27/360 × 400 = 30 kuintal
c) 108/360 × 100% = 30%
d) 72/360 + 100% = 20%