Hi Avery,
Let's break down the word problem:
"Cheryl gets paid $8 per hour for her job at the record store" means 8 times h so 8h
"and $15 for working late on Saturday". and means you have to ADD. so + 15
"She made a total of $96 last week" means everything you added must EQUAL 96 so: 8h + 15 = 96
Second equation is correct.