### Instruction: The NASA Space Shuttle transports material to the International Space Station at a cost of $\$22,\!000$ per kilogram. What is the number of dollars in the cost of transporting a 250 g control module?### Response: So the cost is $\$22,\!000$ per kilogram.
And there are 1000 grams in a kilogram.
So we need to divide the cost by 1000 to find the cost per gram.
That would be $\frac{\$22,\!000}{1000} = \$22$ per gram.