So, he bakes 85 loaves of bread in one day. First, we should find out how many loaves of bread he bakes is 5 days. To do this, we multiply 85*5=425. So, in 5 days, he bakes 425 loaves of bread. But it says, "how many loaves of bread will his dad bake in two 5-day work week". So, since we have one 5-day work week, we could add 425 + 425 to get 2 5-days weeks (or multiply 425 * 2). So, if we do this, it turns out that Raul's dad bakes 850 loaves of bread in two 5-day work weeks. Hope this helped!