1:2
because red:black = 10:20 and simplifies to 1:2
Answer: 1 0 is like x you solve for x. X= 1 0=1
Answer:
3628800
Step-by-step explanation:
just use a calculator if you need these types of things
if you're using this for a equation then substitute with 10*9*8*...
Just solve for x and then compare