Atrain traveled at the same speed for 4hours. it went 159.8 miles in all how fast was the train going? (calculate the unit rate)

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?