40 x 8 = 320 This is how much he made after 40 hours
8 x 1.5 = 12 This is time-and-a-half
2 x 12 = 24 This is how much Willie made for his two extra hours
24 + 320 = $344 This is how much Willie made last week
Willie will be payed for 40 hours at his base rate. At 40 hours, Willie would've made $320. His pay rate for overtime is 1.5, or $12, and he will be payed for 2 hours overtime. For those 2 overtime hours, he made $24. Willie made $344 last week.