Question

Pls help me figure this out

Answer 1

C.
`(27)/(225)=(b)/(100)`

Explanation:

To find the number of black ribbons one would have subtract the amount of red ribbons from the total number of ribbons. Then one would have to express it as a proportion. Part over whole equals percent over 100. The number of black ribbons over total ribbons equals "b" over 100.