5 is ___% of 7.

a. 714.29
b. 71.43
c. 7.14
d. 0.71

I believe that it looks like that
5=R x 7
R= 5:7
R=0.7142

Is it correct? d ?
Thank You

omg,no, its not d

5 is more than 50% of 7
it's b