Question

Помогите сделать номера 870(2) ,871,872

Answer 1

870)2
7/3,9/2.29/8,47/9,31/5,23/3,39/4,73/6
872)1
V=s/t;
V=22/4
V=5*2/4
)2
S=ab
21=6*x
X=21/6
X=3*3/6
X=3.5