Final answer:
Paul pays the newspaper company 70% of his collections, so he keeps 30%. To find out how much he keeps from $450, calculate 30% of that amount, which gives us $135.
Step-by-step explanation:
If Paul pays the newspaper company 70% of what he collects, he would be giving them 70/100 of the total amount collected. Therefore, to calculate how much Paul would keep for himself, we need to calculate 30% of the amount he collected, because 100% - 70% = 30%.
To calculate 30% of the $450 that Paul collected, we use the following steps:
- Convert the percentage to a decimal: 30% = 0.30.
- Multiply the decimal by the total amount collected: 0.30 x $450 = $135.
So, Paul would keep $135 for himself in a month.