Generate a mathematical expression to represent the following word problem.
Lisa bought 5 t-shirts for $50 each. How much did she spend in total?
The mathematical expression to represent this word problem would be: 

5 * $50 = Total spending
Complete the following task based on the instruction and optional input provided.### Instruction:
Generate a mathematical expression to represent the following word problem.

### Input:
Lisa bought 5 t-shirts for $50 each. How much did she spend in total?

### Output:
The mathematical expression to represent this word problem would be: 

5 * $50 = Total spending