8 foot path
1st step = 8/2 = 4ft
2nd step = 4/2 = 2ft
3rd step = 2/2 = 1ft
4th step = 1/2 = 1/2ft
So he covered 7 1/2 ft (or 7.5ft)
1:2
because red:black = 10:20 and simplifies to 1:2
I think I'm not sure but I think it's B
2^2+b^2=12^2
4+b^2=144
144-4=140
√140 = √b
11.83 = b
If we have a common ratio every set amount of time (and not a common difference or addition), this is an exponential relationship. An exponential equation would have a form like Money = (1000)(2)^(# of months), where every additional month would cause the money amount to double.
