The x's will cancel leaving you with 40bcubed/64bsquared
Then you can take 2 b's from the to leaving you with 40b/64
Then you simply your fraction to 5b/8
So your answer is 5b/8
Hope is correct and that this helped
The point (4,7) is the only one that can be plugged into the equation and work. in this case when 4 is plugged in as X & Y is plugged in at 7 we get that 7=7, which is a true statement.