###Human: Stormi is saving up to buy a bicycle. She washes 3 cars for $10 each. She mows 2 lawns for $13 each. If the bicycle she wants costs $80, how much more money does Stormi need to make to afford the bicycle?, ### Assistant: The total amount of money from washing cars is 3 * $10 = $30
The total amount of money from mowing lawns 2 * $13 = $26
The total amount of money Stormi makes is $30 + $26 = $56
Stormi still needs to make $80 - $56 = $24 
 So the answer is :  24