[tex]\text{Hello there!}\\\\\text{We know that 500 is 20\% of his income}\\\\\text{We need to know what 100\% of his income is}\\\\\text{To get to 100\%, we need to multiply by 5 because 20 times 5}\\\text{makes 100}\\\\500*5=2500\\\\\boxed{\text{His monthly income is \$2,500}}[/tex]
