Помогите решить!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Question

Помогите решить!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answer 1

1) 3/4*2,8=2,1

2) 2,1*1,2=2,52

3) 5:1/5=5/1:1/5=25

4) 2,52:25=0,1008