Mrs. Carter owns a shop specializing in obscure blends of tea. She has combined 1 pound of Darjeeling with 3 pounds of Earl Grey, for a 4-pound mixture that is 25% Darjeeling. After tasting it, she decided to change the mixture to 50% Darjeeling. How much Darjeeling does she need to add to bring it up to the 50%?

Whose mistake? can you give more details to what the question is asking?

This is what i found “answer: a rigid transformation preserves both the side lengths and the angle measures of a polygon. step-by-step explanation: rigid transformations are the transformations which does not affect the size and the shape of figure .” i hope this you for what your looking for. can you plz mark me brainliest?