How does expanding the scale of production affect production costs? arnold and helga decide to start selling homemade jewelry on etsy to earn some extra income. however, the materials they use are expensive, and it takes them a long time to finish each piece of jewelry because they bicker about how it should look. in short, their process is not –. their daughter phillipa suggests that they design the pieces before they start making the jewelry to increase their –. they are able to make the jewelry more quickly and decrease their – cost of production. when arnold and helga are able to expand the size of their operation, they are able to experience –.

Juanita and sam attend a beach party and notice that the local beach appears to have a great deal more trash washed up on shore than it did when they were young. the water doesn't appear nearly as clear, and there seems to be less evidence of small water creatures living in the shallows. an afternoon at the local library convinces them that one major cause is the new factory nearby. after some discussion, they decide their next step should be identifying the cause of the changes identifying the problem picketing the guilty factory lobbying their elected representatives to complain about the problem talking to a local environmental group about solutions