Question 13 1 points Save Answer Maria is paid on a graduated commission scale of 5% on the first $20,000 of sales in a month, 7.5% on the next $30,000 and 8% on all additional sales. What will she be paid for a month in which her sales are $72,2507 a) $1,000 b) $2,250 51,780 $5,030 e) 514,811