For every lawn Dominic mows he earns $12 and for every lawn Boris mows he earns $15. How much money

For every lawn Dominic mows he earns $12 and for every lawn Boris mows he earns $15. How much money will Boris have after mowing 20 lawns?

After 20 lawns mowed:

• Dominic makes 20 x 12 = 240
• Boris makes 15 x 12 = 300

Boris makes 300 - 240 = $60 more than Dominic