Determine whether the two triangles are similar. if they are similar, write the singularity statement

If the cost to mail a package is an initial $5 and $0.28 for every pound the total cost to mail a package was $11.27, how much did the package weigh?

Find the roots of the polynomial function f(x) = x^3 + 2x^2 + x

Polygon abcde is reflected to produce polygon a′b′c′d′e′. what is the equation for the line of reflection?