Bantu jawab dong ! Please !

1. Kerangka 1 balok → 4p + 4l + 4t
= (10×4) + (7×4) + (6×4)
= 40 + 28 + 24
= 92 cm
<=> 5 m : 92 cm
= 500 : 92 = 5 buah kerangka, sisa 40 cm
2.