I posted another question :)

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?

Write as a product: ac^2–ad+c^3–cd–bc^2+bd

Given sin28.4=.4756, cos28.4=.8796, and tan28.4=.5407 find the cot of 61.6