Question

Помогите!Срочно 857 2) и 866!

Answer 1

№857 2) x = 92000
№866
240/30=8
240/120=2
6300/900=7
6300/300=21
300*70/420000=0,05
100000-60*20=88000

Answer 2

857 2.)
х:200=460
х=460•200
х=92000
866
240:30=8
240:120=2
6300:900=7
6300:300=21
300•70+420000=21000+420000=441000
100000-600•20=100000-12000=88000