Step-by-step explanation: each value is going up the hundreds place you add 100 each time the 10s place you add 10 each time and the ones place you add one each time
since he works 40 hours per week and gets $16 an hour, that would be 16 * 40 which is 640, so that means he needs a commission rate of 10% as 10% of 6400 is 640.
