$20 a month. if u subtract the amount that she started with from $85, you get $60. $60 divided by 3 months is $20 a month
It is in simple form. There is absolutely nothing more that can be done, unless it is a joke. And math jokes are very hard to come by.
I don't think that y(y - 1)/(a + 2b) is any simpler.
Come to think of it, is that x^2 or y^2 on the top left.
I think my first answer is the best one. Nothing can be done.
B And c I think I don’t understand the question you’re trying to ask