Tiffany collects perfume bottles. she has 99 in hercollection.2/3 of her perfume bottles are crystal. how many of tiffanies perfume bottles are crystal?

2/3 (or 66.6%) of 99 is 66, so 66 of her bottles are crystal. 

I believe the answers would be 66 of her perfume bottles are crystal..

hope this helps

Do you have answer choices?

7days is 168 hours in decimal form it is just 168 there is no decimal form for this because it is like 168.0 and there is no number you are dividing it by for it to be a decimal.hope this