<span>Your taxable income must be less than $100,000 and only come in the form of wages</span>
Answer:
C. 
Step-by-step 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.
Y + 2 = x, or y + 12 = 2x