Answer:
What the other guy said, he’s correct! :)
Answer:
1
Anything to the 0th power is 1.
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.
The answer is:
D. Ac = {xΙx ∈ U and is an even positive integer}
:)
Let x be the number. x= 2x-17
-x=-17
x=17