Question

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 for the amount of money Kathy has left.

Answer 1

20 weeks, earnings $(15 + 35), spending $300:

20(15 + 35) - 300 = amount of money she has left

Answer 2

The expression should be (15x20)+(35x20)-300.