500
Every week for 20 weeks, Kathy earned $15 for mowing lawns and $35 for delivering newspapers. At the end of 20 weeks, she stopped mowing lawns and delivering newspapers and spent $300. She didn’t earn or spend any money besides what is described here.
Write a numerical expression with parentheses showing how much money Kathy has left. Do not simplify your expression.
What is 20 (15 + 35) - 300