.9 is = to 9/10 because when you pronounce .9 you say nine-tenths, so 9/10
2 4/5, that is it in simplest form
If you think of the "for every" as a : then it will make sense. So, replace the "for every" with a :.
So:
There are 5 strawberries for every 6 apples
Turns into
strawberries:apples = 5:6
16.36 times 9 which equals to 147.51 minutes
B, D, E are appropriate choices.
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A ray can be named by its (one) end-point and any other point on the ray. Since there are an infinite number of points on the ray, it can be named an infinite number of ways.
