Answer:
4
Step-by-step explanation:
For this problem, you would have to use a system of equations. Hope this helps!
Answer:
27.72
Step-by-step explanation:
Sorry about before i made a slight mistake
Your answer will be:
The total number of marbles that are not black.
Find the GCF of both numerator and denominator and then divide both the denominator and numerator by that and you will get the simplified fraction.