Answer:
A
Step-by-step explanation:
reflections don't change size or shape just like mirrors
If i'm correct, the answer should be
-3a
hope this helped! 8)
What we know here is that all 2500 shares together are worth 100 000 dollars in total. (it's 100 000.00 actually, but we can ignore the part after the point, as it's equal to 0).
This means that each of the shares is valid the whole sum divided by the number of shares, that is:
(first i divided both denominator and numerator by 100)
So each value is worth 40 dolars.
215 seconds
100/120=.833
.833×258= 215

Or, if that hyphen between the lower index and 3 is actually a negative sign, then the sum is -189.