last year manfred received 26 paychecks . each of his first 6 paychecks was $ 750 ; each of his remaining paychecks was $ 20 more than each of his first 6 paychecks . to the nearest dollar , what was the average ( arithmetic mean ) amount of his pay checks for the year ?
= ( 750 * 6 + 770 * 20 ) / 26 = 765 answer is c . posted from my mobile device
divide(add(multiply(add(750, 20), 20), multiply(6, 750)), 26)