The answer you are looking for is B. If you use the FOIL method (first,outer,inner,last) of multiplication, you will find that (x+5) times (x-5) is actually x^2+25. Hope this helps! Comment if you have questions!!! :)
You would have 40 dimes..
They are similar. Both isosceles triangles
I think it will be because if you multiply 1/2 times 4/5 it will be 0.4
