tlong jawab ya nmor 7-9 pake cara ya harusss klogk blokir userr ayo yang pakar, sihebat, and jenius klo njawab mohon diteliti yaa

7.
=1,5 kg+10 pon+15ons
=1,5 x 1000 g+ 10 x 500 g+15 x100 g
=1.500 g+5.000 g+ 1.500 g
=8.000 g (B)
8.
=3 thn +12 bln+8 mng
=3 x 48 mng+12 x 4 mng+8 mng
=144 mng+48 mnt+8 mng
=200 mng (C)
9.
=5 km+7 dam-9 hm
=5 x 1.000 m+7 x 10 m-9 x 100 m
=5.000 m+70 m-900 m
=4170 m (B)