Which aspect has not changed the face of american farms? technology increased productivity machinery decreased productivity

People keep spending additional units of a particular resource on a want until their marginal benefit is  decreasing withgreater thanless thannot affected by  their marginal cost.

Match the graph type to its description. 1. uses symbols to describe information pie 2. compares different quantities at the same point in time line 3. compares increases and decreases in a quantity over a period of time bar 4. shows the relationship of parts to each other and to the whole pictograph

In the figure, polygon abcd is transformed to create polygon a′b′c′d′. this transformation is a by a factor of .