Major Database Challenge

I have been working on this for hours with no success. I am trying to wrap this sql in $wpdb. As is stands it works great, but it needs the $wpdb function included for security, but just don’t see how to get it down. It might seem a little confusing, but it is for a 7 day schedule for times and details of classes. The days of the week are saved in an array and everything is printed out in the loop. Like I said it works. Anyone up for the challenge? thanks in advance.

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