Danny collects bottle caps and wrappers. He found w bottle caps and x wrappers at the park. Now he has y bottle caps and z wrappers in his collection. How many more bottle caps than wrappers did danny find at the park?
Danny found 30 bottle caps and 14 wrappers at the park. Now he has 7 bottle caps and 86 wrappers in his collection. Danny found 16 more bottle caps than wrappers at the park.