Here is the original item:
Baking in his hot car during rush-hour traffic, Joe drank the last few drops
of his iced tea. And prayed that he could make the costly repair to his
broken air conditioner with this week's paycheck.
You chose to add the subject he to the verb hoped and then connect the two parts, like this:
Baking in his hot car during rush-hour traffic, Joe drank the last few drops
of his iced tea and he prayed that he could
make the costly repair to his broken air conditioner with this week's paycheck.
This choice is wrong because when you add he, you must also add punctuation. Review the rules.