Question

Please help me just number 8

Answer 1

A = 13,9/10-3,1/2=3,1/2 times5/5=13,9/10-3,5/10=10,4/10
B=13,9/10-9,9/10=4,0/0

Answer 2

a. 3.9714285714 b.1.404040404

Explanation:

13.9/3.5

13.9/9.9

I do not know if this is correct, but give it a try.