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Verified answer
1) V = ¾ × p × l × t= ¾ × 28 × 16 × 4
= 1.344 m³
2) L = s²
324 = s²
s = √324
s = 18 cm
3) 42,375 + 12½ × 15% + 15¾
= 42,375 + 1,875 + 15,75
= 60
4) V = ⅔ × p × l × t
= ⅔ × 75 × 60 × 80
= 240.000 cm³
= 240 liter
5) 3½ kg + 3 pon + 9 ons
= ( 3½ × 10 ) + ( 3 × 5 ) + 9
= 35 + 15 + 9
= 59 ons
6) 2,125 dam³ + 0,48 m³ - 24.800 dm³
= ( 2,125 × 1.000.000) + ( 0,48 × 1.000) - 24.800
= 2.125.000 + 480 - 24.800
= 2.100.680 liter
7) pukul 11.30
panjang = angka 6
pendek = antara 11 & 12
( 5 × 30° ) + ( ½ × 30°)
= 150° + 15°
= 165°