bantu ngerjain tugas matematika

24.5a+3a+2=110
     8a=108
       a=108/8
       a=13.5
25.EGKI
26.kell balok = (4x(P+l))+(4T)=(4x(2+0.5))+(4x0.3)=10+1.2=11.2m
     harga aluminium = 30000x11.2=Rp.336.000