Final answer:
Alice would earn 48x dollars.
Step-by-step explanation:
Alice earns x dollars per hour for the first 40 hours she works in a week and times as much for each hour over 40. If she worked 48 hours last week, she would earn:
For the first 40 hours: 40 * x = 40x
For the additional 8 hours: 8 * (x times as much) = 8x
Therefore, her total earnings would be 40x + 8x = 48x