More cards in this set

Card 6

Front

What is the payback time equation?

Back

Preview of the front of card 6

Card 7

Front

What does it mean when someone says "How efficient is it?"?

Back

Preview of the front of card 7

Card 8

Front

What is the equation for efficency?

Back

Preview of the front of card 8

Card 9

Front

What does the straight arrow on a sankey diagram mean?

Back

Preview of the front of card 9