The length of a rectangular garden is 8 feet longer than its width. the garden is surrounded by a sidewalk that is 4 feet wide and has an area of 320 square feet. find the dimensions of the garden.

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?