mercury is one of only two elements that are liquid at room temparture. Mercury is not liquid for tempartures less than -38 F or greater than 673.8 F. Write a compound inequality for the tempartures at which mercury is not liquid

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?