Samantha earns 12% commission each week for sales of a product. Last week, she sold $6,400 worth of product. How much did she earn in commission last week? If she makes the same amount each week, how much commission will she earn in a year?

To calculate Samantha's commission for last week, you would multiply her sales by her commission rate:

Commission = Sales x Commission Rate
Commission = $6,400 x 0.12
Commission = $768

Therefore, Samantha earned $768 in commission last week.

To calculate Samantha's annual commission, you would multiply her weekly commission by the number of weeks in a year:

Annual Commission = Weekly Commission x Weeks in a Year
Annual Commission = $768 x 52
Annual Commission = $39,936

Therefore, Samantha would earn $39,936 in commission in a year if she makes the same amount each week.