Which one (it’s a test a and it’s due tonight I need help)

Show me how you find the value of each variable and determine what the value of each variable is you i appreciate it : )

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?

In a rectangle klmn, km = 6x + 16 and ln = 49. find the value of x