-7.5 / -2.5 = 3
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0.31 rounded to the nearest tenth would be 0.3
This Chart should help you in the future:
You know how a puppy is a kind of dog, but not all dogs are puppies? Well, the same thing is true for lots of other categories of things, including squares and rectangles.
yes it is .....,...............reflex angle
A b c d... and x are all representing 1 unknown #. The particular letter
is not revelent unless its like f (x) =.... which just means y but g(x) sometimes means graph.
otherwise it doesn't matter at all