Nicole used 3/8 of her ribbon, if she used 6 feet of the ribbon, how much did she have at first?

Ok so 6 feet=3/8
We need to find 1/8
So 6 divided by 3 = 2
1/8=2
We need to find 8/8
So 2x8=16
Her ribbon was 16 feet

1. 0.3 •4 is the same as 4 groups of 0.32. 7•0.8 is the same as 7 groups of 0.83. it increases by 0.5 every time, so 0.5x4 it increases by 0.9 every time, so 0.9x5. 0.9•12=10.86. 0.47•5=2.35i can finish the next ones in a separate post