A worker earns $30 for every four hours how much would a worker in a 19 hours

$142.50

Step-by-step explanation:

Hello! We can start by finding the hourly rate of how this worker earns. Since he earns 30 dollars for every 4 hours he works, we can divide 30/4 to find the hourly pay ($7.50). This logically makes sense since working 4 hours on a 7.50 wage totals 30. Since we have the hourly rate, now what we can do is multiply that by 19, which is how many hours he worked. 7.50x19=142.5.