Answer: He earns $225 by mowing lawns
Step-by-step explanation:
The amount saved by Patrick= $500
The percentage of money he earn by mowing lawns=[tex]100\%-25\%-30\%=45\%[/tex]
Then the amount of money he earns by mowing lawns= [tex]45\%\ of\ 500[/tex]
⇒ The amount of money he earns by mowing lawns=[tex]0.45\times500=\$225[/tex]
Hence, The amount of his savings he earns by mowing lawns= $225