Answer:
Step-by-step explanation:
1.
c.r.=10.5/10=105/100=21/20
or 10.5/10=1.05
2.
c.r=9/27=1/3
3.
c.r.=(3/4)/1=3/4
4.8÷40=4.8÷4÷10
=0.12
0.12=12/100
=3/25
1st one is x=26
2nd one is x=4
3rd is x=4
4th is x=-1
Hope that helps!
None of the above