If Mark (m) is 8 years older than Susan (s), which expression represents Mark's age? A-8+s
B-8s
C-m-8
D-s-8

The ivring berlin learning center would like a possible net profit of $650,000 on its new resource manual it sells to schools. the fixed costs for producing the manual are $780,000 and the variable cost per package is $19.85. if the estimated unit sales are 1,250,000 units, what selling price unit should the ivring berlin learning center try?