Tolong dibantu nomor 7 sampai 11 pakai cara

7. √1.296 × √ 196 = 36 × 14 = 504 (D)
8. 5/6; 3/5; 0,75; 15%
= 5/6; 3/5; 75/100; 15/100
= 250/300; 180/300; 225/300; 45/300
Urutan dr yg bsr » 5/6; 0,75; 3/5; 15% (A)
9. 6 1/2 - 3 3/4 = 6 2/4 - 3 3/4 = 5 6/4 - 3 3/4 = 2 3/4 (B)
10. 7 2/3 : 2 1/4 = 23/3 : 9/4 = 23/3 × 4/9 = 92/27 = 3 11/27 (A)
11. 2 1/8 + (4 × 8 1/2)
= 2 1/8 + (4 × 17/2)
= 2 1/8 + 68/2
= 2 1/8 + 34 = 36 1/8
= 36125/1000 = 36,125 kwintal (B)