Answer:
$320 would be earned
Explanation:
To start this you could put the salary into a ratio of 24:1.5. This would represent 24 dollars earned every 1.5 hours. To make this easier you would then try to make 1.5 into 1 to find the answer quicker. Divide on both sides of ratio 1.5 so that the new ratio is 16:1 in meaning Conner earns 16 dollars every hour.
Now add the hours he worked together (8+12=20). Conner worked for 20 total hours so multiply 16 by 20 because he earned 16 every hour. 16*20=320