Explain why a two-dimensional net is useful for finding the surface area of a three-dimensional figure. answer as soon as possible plz

If 1 is divided by the sum of y& 4.the result is equal to 3 divided by 4, find the value of m

To describe a sequence of transformations that maps triangle abc onto triangle a"b"c", a student starts with a reflection over the x-axis.how should the student complete the sequence of transformations to map triangle abc onto triangle a"b"c"? plz

What is the effect on the graph of the function f(x)=x when f(x) is replaced with -f(x)+4